Unless specified, items are sold individually (as single pieces)
- Material : Glass CBR with Rubber Bead
- Gauge at Wear Area : Choose from 8mm, 10mm or 12mm.
- Inside Length : All sizes are 16mm inside length.
- Ball Size : 8mm and 10mm pieces have an 8mm rubber ball. 12mm rings have a 10mm ball.
- Price increases with size.