The Prima is lightweight, easy clean and can be autoclaved. Has a gently contoured surface for extra comfort that fixes securely with two side adjusters and a lip on the front for better positioning. Large aperture at the front allows for personal cleansing and the rear aperture gives clearance for the coccyx as well as allowing for rear personal hygiene. Available with or without a lid. Lid can also be used as a bathroom seat. Size: 380 x 390 x 50/100mm (15 x 15 2/4"")