There is a lever on both sides of the manipulator, and the connecting points on both sides are the fulcrum of the lever. When there is no pull handle, the rubber band provides an elastic resistance, forcing the manipulator to open. When the handle is pulled, it will give the manipulator rotation power, and it can be closed and clamped.
Type: STEM toys, DIY toys
Suggested Age: 8 years and up
Package Size: 21.5*15*6cm
Warning: not suitable for children under 3 years
Note: this is a DIY kit, you need to assemble it