Reasons for choosing us: Professional customized silicone oil : - colorless and transparent,silicon lubricant (Non-toxic and Colorless, High temperature resistance up to - 158 ℉～ 590 ℉, High stability and High lubricity) ✔2. Easy To Use : We independently developed super hard application tubes Perfect to Avoid the Disadvantages of Soft Tubes: -1. Cheap structure, easy to fall off -2. When in use, it is easy to be bent by the treadmill belt and increase the difficulty of extending to the middle of the treadmill belt. 3.Eliminate Mess - Easy to Apply and No Need to Loosen Your Treadmill Belt. 4. Principle of good faith management: NOTE: those unprofessional sellers tell you: silicon lubricant is suitable for all products lubrication!This is a misleading behavior! Silicon lubricant has a very good effect on plastic and rubber products, but silicon lubricant is only a kind of ingredient of metal lubricant, it can not completely replace metal lubricant (chain, metal gear, bearing, etc.), the effect is not ideal.How to use？ Method of application 1: 1.Lift the treadmill belt.(this is the best. It can be operated without lifting.) 2.Slowly remove the tube and squeeze the silicone lubricant slowly until it reaches the edge of the treadmill belt. 3.Repeat on the other side of the treadmill. Method of application 2: 1.If your treadmill has a lubricant filler, you can fill it directly.