41 Available contact for bulk discounts The Roca The Gap Basin is a new oval-shaped sit-on basin designed for the bathroom. It features dimensions of 13 cm in height, 39 cm in length, and 55 cm in width, making it a suitable size for most bathroom spaces. The basin is a classic white colour, adding a clean and modern look to any bathroom setting. With the Roca brand known for quality bathroom fixtures, this basin is sure to provide both style and functionality to your home.