Pin for use in a traditional woodworker’s leg vise parallel guide. Two sizes standard- choose from 3/8” diameter or 1/2” diameter, length of pin is about 6” plus the ring. If you need a different diameter or length, just go ahead and purchase the larger 1/2” diameter pin, and then specify your dimensional needs in a note on the order in checkout. As always, don’t hesitate to reach out with questions. Listing is for one pin.