Do experiment- Make a Movable Drawbridge
1. Non-toxic wooden and plastic materials
2. 6-color paint with CE certificate
3. Block and tackle is a system of two or more pulleys with a rope or cable threaded between them,
usually used to lift or pull heavy loads. The pulleys are assembled together to form blocks and then
blocks are paired so that one is fixed and one moves with the load. The rope is threaded, or wove,
through the pulleys to provide mechanical advantage that amplifies the force applied to the rope.
4. The design of the lift bridge model is made up of double deck bridge, movable bridge and lifting
device. When shaking the handle, the rope rises or falls through the lifting device of the pulley.
Description | Make a Movable Drawbridge |
Item No. | kids educational toys, SC-038 |
Components | wooden parts, paper sheets, eyelets, gaskets, pulleys, strings, plastic axles, 6-color paints, brush and glue |
Size | assembled size is 21.5*12*12.5cm |
Packing | zip lock bag |
MOQ | 50kits |
Produce Time | for MOQ, around 3days |
Sample Time | one day |