STEM Building Toys, Puzzles and Fidget Toys for Curious Kids

STEM Building Toys, Puzzles and Fidget Toys for Curious Kids

Building and puzzle toys are where children learn to plan: which piece goes next, why the tower fell, how the marble gets from top to bottom. They are also some of the few toys that hold the attention of a whole family at once.

Here is every building, puzzle and fidget toy in our store, from first floor puzzles to 500-piece glow-in-the-dark jigsaws.

Picking the right challenge

  • Ages 3–5: magnetic tiles and 24-piece floor puzzles with big, sturdy pieces.
  • Ages 5–8: marble runs and build-and-launch kits that add cause and effect.
  • Ages 8 and up, and adults: 500-piece puzzles, magnetic puzzle cubes and fidget toys.
  • Mix sets: most magnetic tile brands connect, so sets can be combined as a collection grows.

Magnetic tiles and construction sets

Open-ended building that teaches shapes, balance and 3D thinking.

 building set, educational toys, kids creative play, magnetic building blocks, magnetic tiles, Montessori toys, STEM toys 181-Piece Magnetic Building Tiles Set for 3+
181-Piece Magnetic Building Tiles Set for 3+A 181-piece magnetic tile set for building towers, houses and vehicles, ages 3+.From $59.99View product →
Magnetic building tiles set by For Full Fun, 50-piece set with colorful geometric shapes, compatible with Magna-Tiles for creative play
Magnetic Building Tiles Set (110 / 66 / 50 PCS) Compatible with Magna-TilesMagnetic building tiles in 110, 66 or 50-piece sets, compatible with Magna-Tiles.From $39.99View product →
Forfullfun Toys Connetix Rainbow Creative Pack – 102-Piece Magnetic Building Set
Connetix Rainbow Creative Pack – 102-Piece Magnetic Building SetA 102-piece rainbow magnetic building set for open-ended STEM play.From $129.99View product →
Colorful 236-piece glowing marble run set with motorized elevator by For Full Fun, featuring vibrant marbles and interconnected tracks.
236-Piece Glowing Marble Run with Motorized ElevatorA 236-piece glow-in-the-dark marble run with a motorised elevator.From $49.99View product →
Colorful SpaceBalloons by For Full Fun in various shapes and sizes floating against a starry background.
SpaceBalloonsA build-and-launch balloon rocket kit for rainy-day experiments.From $54.90View product →
Forfullfun Toys Kids, Toys, Train Set Wooden Train Track Set
Wooden Train Track SetA 38-piece wooden train track set.From $59.99View product →

Floor puzzles and jigsaws

From 24-piece floor puzzles for preschoolers to 500-piece glow-in-the-dark family puzzles.

Forfullfun Toys Construction Site 24-Piece Floor Puzzle
Construction Site 24-Piece Floor PuzzleFor budding builders everywhere, this sturdy 24 piece floor puzzle features vibrant, detailed artwork with plenty of things to spot.From $29.99View product →
Forfullfun Toys Mermaid Friends 24-Piece Floor Puzzle
Mermaid Friends 24-Piece Floor PuzzleFor mermaid lovers everywhere, this sturdy 24 piece floor puzzle features vibrant, detailed artwork with plenty of things to spot.From $29.99View product →
Forfullfun Toys Outer Space 24-Piece Floor Puzzle
Outer Space 24-Piece Floor PuzzleThis vibrant 24-piece floor puzzle launches little imaginations straight into outer space.From $26.99View product →
Forfullfun Toys Wild Rainforest 24-Piece Floor Puzzle
Wild Rainforest 24-Piece Floor PuzzleFor wildlife lovers everywhere, this sturdy 24 piece floor puzzle features vibrant, detailed artwork with plenty of things to spot.From $29.99View product →
Forfullfun Toys World Map 24-Piece Floor Puzzle
World Map 24-Piece Floor PuzzleFor globetrotters everywhere, this sturdy 24 piece floor puzzle features vibrant, detailed artwork with plenty of things to spot.From $29.99View product →
Forfullfun Toys Dinosaurs Illuminated 500 Piece Glow in the Dark Puzzle
Dinosaurs Illuminated 500 Piece Glow in the Dark PuzzlePiece together a colorful pre-historic scene with Mudpuppy's Dinos Illuminated 500 Piece Glow in the Dark Family Puzzle.From $29.99View product →
Forfullfun Toys Ocean Illuminated 500 Piece Glow in the Dark Family Puzzle
Ocean Illuminated 500 Piece Glow in the Dark Family PuzzlePiece together a colorful underwater scene with Mudpuppy's Ocean Illuminated 500 Piece Glow in the Dark Family Puzzle.From $29.99View product →
Forfullfun Toys Wooden Puzzle Table
Wooden Puzzle TableA wooden puzzle table with a spacious surface for big puzzle sessions.From $99.99View product →
 Bits and Pieces Jumbo Puzzle Plateau Jigsaw Puzzle Organizer 26" x 34", Wooden, 1500 PCS, 4 Trays
Bits and Pieces Jumbo Puzzle Plateau Jigsaw Puzzle Organizer 26" x 34", Wooden, 1500 PCS, 4 TraysA wooden puzzle plateau with drawers that holds up to a 1,500-piece puzzle.From $89.99View product →

Fidget toys and puzzle cubes

Quiet, screen-free things for busy hands, for kids and adults alike.

For Full Fun-Metal Infinity Magic Cube Fidget Toy Cube suitable for Adults & Kids-
Aluminum Alloy Infinity Cube Fidget Toy with Case — Focus & Calm, For Kids & Adults, 6 ColorsFor restless hands that reach for screens. This solid aluminum infinity cube folds silently, travels anywhere, and includes a case. Ages 5 and up.From $34.99View product →
For Full Fun-04 x Infinity Cubes Fidget Toy Multicolors-
Set of 04 Pcs Infinity Cube Fidget Toy , Washable ABS, Screen-Free Focus for Kids & AdultsOne always goes missing. This set of 4 washable ABS infinity cubes means there's always one in the bag, the desk, the car. Rounded edges, silent fold.From $23.99View product →
For Full Fun-Changeable Magnetic Magic Cube The Ultimate Shape-Shifting Puzzle Toy-
Shashibo Magnetic Puzzle Cube — Shape-Shifting Fidget Toy, 70+ Shape, Ages 4+36 rare earth magnets. 70+ shapes. 4 art patterns per cube. The magnetic puzzle that holds attention long after other fidget toys go quiet. Ages 4+.From $19.99View product →

Frequently asked questions

What age are magnetic tiles for?

Most magnetic tile sets are designed for ages 3 and up, and older children keep using them for more complex builds.

Are fidget toys good for kids?

Many children focus better with something quiet to do with their hands. Choose fidget toys without small detachable parts for younger kids.

What size puzzle should I buy?

Around 24 large pieces for ages 3–5, 100–300 pieces for ages 6–9, and 500 pieces and up for older kids and family puzzle nights.

For more learning toys, see our Montessori toys guide. Every order ships free in the US.

Be ALERT.