The concave shelf design provides a deep area for the child to lay, preventing them from rolling around. Heavy-duty safety straps provide an additional level of security. Safety belt with cam-buckle is adjustable with one hand for safety and convenience, belt is non-absorbent. *Designed to hold a static load of 250 lbs., with little or no deflection. High-density polyethylene naturally inhibits bacterial growth (tested to ASTM G21 Anti-Bacterial and ASTM G22 Anti-Fungal), which provides a safe, convenient and hygienic platform. Easy to read ANSI compliant labels (ANSI Z535.3 and ANSI Z535.4). Plastic lined bed liners create a barrier between your child and the changer. Liners unfold to 13˝ x 18˝. Molded-in, dual liner dispensers will each accommodate approximately 50 bed liners. Designed for easy mounting, the molded-in hang holes allow the unit to be attached to standard 16˝ on-center studs, or hung on a hollow wall - all required hardware is included. Concealed rear pneumatic strut provides smooth opening/closing power while concealed hardware maintains appearance and prevents tampering.