Features the same individually responsive cells, Ring-of-Air® heat/moisture reduction, and pressure reduction as original Geo-Matt®.Geo-Matt PRT Cushion w/ vinyl & nylon cover 18"W x 16"L, PK 6 Cut from a premium, high-density foam to allow equal support in a lower profile..
3 different base configurations:Black CompositeBright ChromeAluminum Base with Toe Caps2 different pneumatic height adjustmentsStandard: 17″-22″Medium: 19″-26″High: 23″-32″2 Backrest options:Upholstered BackrestCrescent BackrestWeight capacity 300 lbs.
Do not use cheater bars or use external leverage - Misuse not covered under warranty.BronAL Aluminum Bronze Double Ended Open Spanner - 1-7/16 in. x 1-5/8 in.