<b>Why Oumers: </b></br> Oumers INC. mainly engaged in the development and export of Smart Gagdet, bluetooth & wireless products, and other High-tech electronic products. Products of high quality, stylish design. </br> Oumers has always adhered to " High quality products , good customer experience" business purposes. Committed to providing you with high-quality products and quality services.</br> </br> </br> <b>Specifications:</b></br> Designed to quickly and accurately remove and install chain pins.</br> Along with superior strength and durability, it features a handy "loosening shelf" to remedy stiff links after reassembly.</br> The fine thread and comfortable size enable easy removal of even the toughest chain pins.</br> Fits the following : Common bicycle chains of 7/8/9/10 speed, Works for all common bicycle chains.</br>