Mounted on a lightweight aluminium frame this shower seat, made from moulded plastic, is extremely strong & durable & offers the extra support & security of a back rest. Drainage holes reduce slippage Angled feet & big rubber ferrules provide stability Maximum weight capacity of 21 stone (294lbs) Seat measures 20" x 12" Height adjustable from 16"-18" Back rest has a cut-out for easy carrying when seat is folded