The 7-Pin Offset is similar to the Model B exceptthat the feelers are configured to work on the7-pin left offset, 7-pin right offset, and 8-pin split center. No special adjustment is required to change from one lock to another. The TLP-LRB has an aluminum handle, stainless steel barrel, spring steel feelers and comes in a genuine leather case with the TKPD-1 decoder. Use the Model B forthe standard 7 pin tubular lock.