Specification: Product Name: Guide Chain Tensioner Bracket Material: 7075 aluminum alloy Product size: 160*60MM Packing size: 210*100*60MM Net weight: 84 grams Packed weight: 158 grams Color: black/red/gold/silver Features: 1. Highlights: This product uses 7075 locking screws to increase the locking strength and strength. The return spring and guide wheel bearings are replaced with stainless steel materials. There is no worry that the weather will rust and increase the service life. 2. The stainless steel spring is installed inside, and the shape is hollowed out to reduce unnecessary weight of the product, only 84g. 3. Multi-color optional, bright color: very suitable for people who like to modify bicycles and choose bicycle accessories. 4. Product size: 160*60MM, packaging size: 210*100*60MM 5. A variety of colors are available, please refer to the detail page for the effect picture after installation, which is extremely beautiful and cool.