The PC-1 Nickel chain is the same as the PC 1 chain with an upgraded finish for a few dollars more. The Nickel finish has a silver appearance, reduces friction, cleans up nicely and gives a quality look. Heavy duty steel construction and quality bushings hold up to all kinds of abuse. Excellent choice for a fixed gear or economical track bike. Other applications could be for single speed mountain bikes and cruisers. Snap lock connector included.