【CUTEROOM THE SATISFIED TIME】DIY Mini Doll House Models Miniature Wooden Dollhouse Figure Kit Hand Made laundry The Mechanical Multiplier is a

The Mechanical Multiplier is a flat hinge mechanism that accomplishes binary operations on numbers

thanks to the grippy rubber band "tires" encircling all wheels

by sliding the pendulum's top and bottom weights

The open design lets you really see all aspects of the DIY helicopter model

STEM lab model kits come with all you need in a box

【CUTEROOM THE SATISFIED TIME】DIY Mini Doll House Models Miniature Wooden Dollhouse Figure Kit Hand Made laundry The Mechanical Multiplier is aDescription 100% Brand New in Retail Box Packaging Package includes transparent dust cover, LED lights & all necessary tools Create your own home model After creating your model, it comes to live with cute decorations, and a transparent dust cover to protect your great model Dust cover helps to store your model, and also prevent scratch or damages Package Contents 1 x Cuteroom DIY Doll House