Suitable for Bachmann and non-Bachmann items. The couplings come as 10 complete coupler sets including the triangle to fix the pocket to the wagon/loco/unit and the coupler including the clip to fit the pocket. These couplers can be useful as the small piece of plastic which holds the pocket to the trianguler piece snaps VERY easily and so these are an easy way of replacing them.  Also these couplers are used on most Bachmann loco's but do not use the pocket.