Optimum Comfort Gel Cushion 24 x 18 x 3 Beds Parts Accessories Healthcare grade * Deluxe elongated Color:Red Healthcare grade * Deluxe elongated open front soft seat enhances resident comfort * Anti slip handgrips * Reinforced at all stress related areas * Rust free frame * User friendly self storing individual sliding footrest prevents foot dragging and entrapment * Dimensions * Internal Width: 30 * External Width: 34 * Threaded Stem Casters: Six 5 x 1 For 16 and 18 Ziggo Wheelchairs: item# ZG1600 and ZG1800 Optimum Comfort Gel Cushion (24 x 18 ) * Unique channeled gel bladder prevents gel migration in high pressure areas * Gel channels provide relief over the entire cushion area * Foam base provides additional support * Inner foam core has a liner to protect the integrity of the foam * High end cover with straps