Trapboy is a mechanical structure slider. The journey consists of four sections. The force can be adjusted through the knob on the side. The hole at the tail can be used to thread the lanyard.
Spring size: 0.4* 4*8mm. Four 4*1mm magnets are included as a gift in the box. If you need to increase the spring force, you can attach the magnet to the bottom of the spring. Increase the force by squeezing the spring space.