Replacement Optical Encoder O-Ring for Q'nique and Block RockiT Long-arm Machines

Optical Encoder O-Ring for Q'nique and Block RockiT Long-arm Machines set of 2

Since the Grace company first started making stitch regulation for domestic and then long-arm quilting machines they have had different styles of rubber o-rings for dual wheel flat track and "V" shaped track for their optical encoders.  The newest version of these o-rings will work on both styles of track. These o-rings are for all Block RockiT and Q'nique stitch regulated machines regardless of how old they are. There is an upper and lower encoder so there are two o-rings included with this set.