SMART DESIGN: Provides a flat and level sitting surface eliminating hammocking associated with wheelchairs. The NYOrtho Solid Seat Insert allows you to have a firm, flat, and rigid base for your properly fitted cushion for improved positioning. Additionally, the insert can be used to raise the height of the wheelchair seat (by 1.5”) for a slightly taller patient. TOP QUALITY: Contains an aggressive non-slip cover which keeps the insert in place as well as ensuring your wheelchair will remain in place. EASY TO CLEAN: The NYOrtho Solid Seat insert contains a specially designed "Wipe Clean" surface allowing you to clean the insert using standard household cleaning products. BENEFITS: Helps to prevent sacral sitting and discourages side-to-side tilt for improved postural support, pelvic balance, and even weight distribution on both ischial tuberosities. FEATURES: High density beveled polyethylene provides a firm foundation that eliminates hammocking. Aggressive non-slip cover keeps foundation in place The NYOtho Solid Seat Insert is a must have accessory for any wheelchair! Wheelchair seats tend to stretch and wear down, otherwise known as hammocking. This often creates uncomfortable seat for the user, especially when using a wheelchair cushion. The seat insert returns the seat to a flat surface and provides the proper support you need.