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This Gross Motor Wooden Curved Bridge for toddlers is a sturdy structure, designed specifically to support and enhance gross motor skills.

The Toddler Wooden Climbing Set is designed to support the development of coordination and movement skills in young children.

This Gross Motor Large Wooden Slope measuring 24.4 x 20 x 4.7 inches (62 x 51 x 12 cm) is a physical activity equipment designed to promote gross m

This robotic arm is an easy to make 3 dimensional model that grabs, lifts items horizontally, and can turn very close to 90 degrees!

Excavators are big machines that are used to dig holes and move earth, and this model uses the same principles as those used in real situations, ex

Platform lifters are cool simple machines that are used to lift platforms horizontally.

Widely used by power and telephone companies (and anyone who wants to get a cat out of a tree) this is an excellent model showing levers and hydrau

Hydraulic  Mini Scissor Lifts are cool machines that are used on building sites to lift a platform horizontally.

This kit contains 4 hydraulics kits in one mini-Mega box of fun.

Hydraulic Gearbots are not all that common, but the fun thing about this one is that it is relatively easy to make, will amaze your friends, and yo

We want our kids to ask questions, solve problems, and take the design process from conception to an end product.

One of the most common types of bridges for freight trains, our Truss Design Lift Bridge is a working replica of the many lift bridges that have be

Based on the classic design at Newcastle-upon-Tyne in the UK, this elegant design has been used for hundreds years around the world.

Probably the coolest bridge we make, this is a replica of the Joseph Strauss design that was made all over North America in the 1920's and 1930's.

The bridge was designed by Leonardo Da Vinci between 1485 and 1490, to be built rapidly with  local trees, that could be easily slid into plac