Ergodyne ProFlex 390 Multi-Functional Foam Kneeling Pad, Cushions and Protects for Static Kneeling, Black, 18" x 36" x 1 DURABLE SUPPORT Made with high density NBR foam rubber that will not compress over time. Silicone-free and non-corrosive to aluminum surfaces. Resistant to petroleum and other liquids making it optimal for car mechanics and garages. LIGHTWEIGHT AND PORTABLE Kneeling pad is lightweight and has a built-in handle making it easy to carry and transport when needed. Convenient handle also allows for hanging storage. MULTIFUNCTIONAL Use to support pressure away from other areas; cushion elbows, shoulders, hips and other body parts when working in tight, constrainted, twisted postures. SIZE DIMENSIONS: 18" x 36" x 1" (46 cm x 91 cm x 2.5 cm)