When using the coil spring, the following points need to be noted: 1. When the hose is pulled out, the outlet direction of the guide frame should be extended. After the hose is pulled out, the hose should not be pulled by brute force to avoid damage to the hose and reel.

A winder spring is a spring element commonly used in mechanical devices such as winders and winder toys. Its main function is to drive the rotation or contraction of the coil or clockwork toy through the contraction and release of the spring, so as to complete various mechanical movements.