SUNEX® PROFESSIONAL PNEUMATIC SHOP SEAT SUNEX® TOOLS 8509 PROFESSIONAL PNEUMATIC SHOP SEAT IS PERFECT FOR MAINTENANCE AND REPAIR APPLICATIONS. THE SEAT ADJUSTS TO THE DESIRED HEIGHT ALLOWING YOU TO WORK EFFICIENTLY IN YOUR ALLOTTED WORK SPACE AND ALLOWING YOU TO KEEP YOUR TOOLS CLOSE BY. FEATURES: AIR CYLINDER FOR EASY HEIGHT ADJUSTMENT. CUSHIONED BLACK VINYL COVERED WOODEN SEAT. FIVE 2-1/2″ CASTERS FOR EASE OF MOBILITY. LARGE, METAL REINFORCED 15-1/4″ DIAMETER 1″ DEEP TOOL TRAY. CAPACITY OF 300 LBS.