Springy
Spring sold individually, delivered in its box.
The incredible Springy, stair descender. Launch it and watch it go down! The spring is a classic coil spring, all metal, pre-compressed, which allows you to do tricks. It can also be used from hand to hand.
Flip the spring and it will descend a staircase or a stack of books on its own and straighten up when it reaches the bottom.
With practice (and quick hands), you can use your hands as stairs. You will need speed and dexterity. See if you can do it!
This gadget is to be left in your living room, everyone will find long moments of pleasure and will know how to have fun.
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