The Simson chain connecting link 7/8 speed has a size of (1/2"x3/32"). With this connecting link a broken or new bicycle chain can simply be connected. The connecting link is suitable for a bicycle chain of bikes with a 7 or 8 derailleur gear, like the Simson Chain Derailleur 7/8. This connecting link can be clicked on the ends of the chain, without the use of tools.