Mechanics Laboratory-Police Car RC Vehicle Board-Games For joining 19mm (3/4") to

For joining 19mm (3/4") to 13mm (1/2") hose connectors

Ultrafast flash storage

pump-activated stink machine and a kid-friendly book with 20 odorous science activities

A game that introduces children to a notoriously difficult subject by letting them experiment with something new and challenging using their own hands

Mechanics Laboratory-Police Car RC Vehicle Board-Games For joining 19mm (3/4") toAn amazing scientific kit to discover the principles of mechanics and engineering and to run at full speed with two police car models. It contains over 300 components to be assembled, two electric motors for rear wheel drive and front steering wheel, gears and a transmission unit. Connecting the cars to the radio frequency receiver children can drive the cars via remote control and start breath taking car chases. The illustrated manuals and the free