CHENGSI Single Speed Bike Chain Link Connector Master Link for Bicycle Chain Bike Chains Quick Link Chain Connector MTB Master Link 1/2X1/8 Suitable with Most 1 - 3 Speed Chains Bikes (10Set) Detail: *Chain Joint Links fit for most 1 - 3 speed chains bikes, such as BMX's, Low rider, kids Single speed bikes, etc. *Easy to install and use. *Item Condition: New *Material:Steel * Color: Black(As Pictures Show) *Size: 1/2 x 1/8 *Pitch: 12.7mm *Pin Dia:3.6mm *Length: 21mm *Width: 9mm *Thickness:1mm *Total Height:11.5mm Package Contents: 10*Chain Joint Links Notes: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 【Fit for Most 1-3 Speed Chains Bikes】These chain joint links are compatible with a wide range of bikes, including BMX's, Low riders, and kids' single speed bikes. 【Easy Installation and Use】Installing and using these chain joint links is hassle-free and straightforward. 【Reliable】Made of steel, these chain joint links are built to last and ensure a secure connection. 【Compact and Lightweight Design】With a size of 1/2 x 1/8 and dimensions of 21mm length, 9mm width, and 1mm thickness, these chain joint links are compact and lightweight. 【Package Includes】This package includes 10 chain joint links, providing ample supply for various bike repair needs.