The 9100 round seat has a full 14” round top and is made up of a special combination of foam for stability and comfort. 9100 & 9120 [20″ min / 27″ max height] FEATURES
The Double Locking Clamp ensures your seat height stays consistent.
The Vise Lock Seat Clamp keeps the seat married to its legs.
The Special Foam Combination provides superior stability and comfort.