Premium 1/4 in. drive socket clips for our Capri Tools Aluminum Socket Rails Also available in 3/8 in. and 1/2 in. drive sizes. All three 1/4, 3/8, and 1/2 in. drive socket clip sizes can fit on the same socket rail, letting you mix and match any way you like Clips with spring-loaded ball detent hold sockets securely and release them easily when you need them Compatible with Capri Tools Aluminum Socket Rails This socket clip pack comes with (15) 1/4 in. socket clips