Check the listing for details. 1st Chair Round Rider Drum Throne. Condition: Open box. Listed at 197.89 USD. The Round Rider features a traditional and gently rounded cushion shape that is very popular due to its versatility. The low profile PVC seams enable smooth leg motion. The 1st Chair Height Adjustment combines a threaded rod and a T-bolt system to offer easy and fast height adjustment.Features:Adjustable from 19"-25 3/4" in heightRound Rider SeatSeat Link1st Chair Height AdjustmentFoot LifeRocklokSeat Link:The Seat Link cing attaches and grips to the entire circumference of the throne's upper rod with a nylon bushing.1st Chair Height Adjustment:Adjustable from 19"- 25 3/4", the blend of a threaded rod system and a T-bolt system makes it easy to adjust fast and ile also being sturdy without slipping.Rocklok:Tama's Rocklokis a Nylon Bushing at the bottom of threaded rod which prevents the.