Description brand new and high quality Features: The switch is of good sensitivity, so it can promote your work efficiently. Simple design and with a small volume. You can use it to light the lamp on Christmas tree or make gifts to your friends. When you use it, please must be careful so as not to break the for mercury. Switch ONLY,other accessories demo in the picture is not included. Specification: Main material: Mercury Color: Sliver Quantity: 20 Pcs Note: No retail package Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 20 Pcs x Switch