K'NEX Education Simple Machines Classroom Pack Science Toys & Kits including a frame for the

including a frame for the tightrope

a locking device and a tilting cab with viewable engine underneath

Does not contain hazardous chemicals or food items

twisting and turning the whole way and back to the working chain lift

Find your blind spot and watch things disappear

K'NEX Education Simple Machines Classroom Pack Science Toys & Kits including a frame for theThis K'NEX Education Simple Machins Classroom Pack is great to help kids learn and have fun at the same time! It includes 2 sets of Levers & Pulleyes, 2 sets of Wheels, Ales, & Inclined Planes, and 2 sets of Gears from the Simple Machines series. K'NEX Education Simple Machines Classroom Pack Specifications Check out the deails on the K'NEX Education Simple Machines Classroom Pack: Manufacturer: Basic Fun Brand: K'Nex Product Type: Building Sets