bike drum oils tool fat as fat injector oils tool multilateral and sustainable ergonomic design

characteristics: 1. will draw dirt, dust and debris on guns, knives and tools. 2. all temperatures work under all conditions and will not be thinner or thicker from heat or cold. three. first use: you should pick up while squeezing the fat in the oil gun barrel, and it can be used after a negative pressure has formed inside. four. many small dead spots can also be easily sung. five. easy to use, ergonomic design, simple operation. description: this product is a bicycle hub tool, easy to u