11-13 Years

Plus-Plus is one shape with endless possibilities!The 70 piece Red Fox tube is a great way to get started with Plus-Plus. Kids will learn to create...

How can just 1 simple, interlocking shape create so much building fun? These pliable, puzzle-like pieces snap together to make flat mosaics or dime...

Plus-Plus is one shape with endless possibilities!The 70 piece School Bus tube is a great way to get started with Plus-Plus. Kids will learn to cre...

Plus-Plus is one shape with endless possibilities!The 240 piece tube is a great way to get started with Plus-Plus. Kids will learn to create in 2D ...

How cool is it that the mainspring stores energy, then converts it to motion? Discover the physics of potential and kinetic energy and the inner wo...

Curious kids experiment with strength and stability, building 20 models that demonstrate mechanical physics or structural engineering principles. T...

Plus-Plus is one shape with endless possibilities!The 70 piece Sushi tube is a great way to get started with Plus-Plus. Kids will learn to create i...

Plus-Plus is one shape with endless possibilities!The 70 piece Tiger tube is a great way to get started with Plus-Plus. Kids will learn to create i...

If your tween or teen has a fascination with all things steampunk - or trains in general - then this kit is for them! Young engineers put on their ...

Plus-Plus is one shape with endless possibilities!The 70 piece Travel Trailer tube is a great way to get started with Plus-Plus. Kids will learn to...

A truly mesmerizing marble-track experience! Each set is made up of hollow stacking cubes and a variety of perfectly flat tracks. The paths cut out...

Stack hollow cubes to magically propel stainless steel marbles down a track for a truly mesmerizing experience! Eighteen special tracks grow wider ...

Plus-Plus is one shape with endless possibilities!The 70 piece Triceratops tube is a great way to get started with Plus-Plus. Kids will learn to cr...

How can one interlocking shape unleash such wild imagination? Build in any direction, from flat to 3D. The 70 pliable, puzzle-like pieces easily co...

Plus-Plus is one shape with endless possibilities!The 70 piece Winter Mix tube is a great way to get started with Plus-Plus. Kids will learn to cre...