Used Rook swivel/pulley for sale. I used it as a bridge roller for roughly 3 months but just recently went back to using a ring on my bridge instead. I removed one of the o-rings inside the attachment hole to make it more compatible with DMM Ultra O's but otherwise it's in fine condition. This price includes shipping in the lower 48. Payments through paypal please. I'll post some pictures tomorrow, I left it on the work truck. PM me