The flowboard is also known as the 'stand-up board' in flowriding. Currently there are four mainstream board brands: Ash Flowboards, Mak Flowboards,Wave Loch, and Jaan Flowboards.These boards differ in shape, materials, lengths and the angle at which the board curves. Generally they take a similar appearance to that of a wakeboard and can be further categorized into strapped and strapless boards. Boards with footstraps are generally used only on the FlowBarrel, but strapless boards are used on both the FlowRider and FlowBarrel. Flowboards range in length from: 910 millimeters (36 inches) to 1070 millimeters (42 inches); and in width from 280 millimeters (11 inches) to 356 millimeters (14 inches). They weigh between 1.4 kilograms (3 pounds) and 2.8 kilograms (6 pounds).[citation needed]