Secure SCSS-1 Sling Seat Rigidizer Insert – Improve Wheelchair Posture and Cushion Performance The Secure SCSS-1 Wheelchair Sling Seat Rigidizer Solid Insert is a reliable, cost-effective solution for wheelchair users experiencing poor posture or discomfort caused by traditional sling seat upholstery. Sling seats commonly found on folding and older wheelchairs often sag or “hammock,” resulting in uneven support that can lead to internal leg rotation, pelvic tilt, spinal misalignment, and long-term discomfort. This solid wheelchair seat insert features a unique convex design that eliminates the hammocking effect, creating a flat and stable seating surface under gel, foam, or air cushions. The result is improved pelvic positioning, better posture, and increased comfort during daily use. Designed with a non-slip vinyl cover and a safety strap that securely anchors the insert in place, this support base helps maintain cushion shape and enhances weight distribution. Measuring 18” wide x 16” deep x 1.75” high, the SCSS-1 fits most standard wheelchair seats and is made from latex-free, flame-retardant materials that are easy to clean with everyday household cleaners. Whether used in home care, hospitals, or long-term care facilities, the SCSS-1 Rigidizer provides a stable foundation for wheelchair users looking to enhance comfort, reduce injury risk, and improve overall seating alignment. 18” Width x 16” Depth x 1.75” Height - Latex-Free - Meets California #117 Flame Retardant Standards