Abstract: A wake board has a body (1) with a lower surface (3), an upper surface (5), and a perimeter (7). The perimeter (7) may have a lower portion (9) having a first radius extending upwardly from the lower surface and an upper portion (11) towards the upper surface and which is relatively sharp or has a second radius substantially smaller than the first radius. The lower portion (9) and upper portion (11) may extend around at least a major part of the perimeter (7), with the upper surface having a substantially flat perimeter region (13) extending around at least a major part of the wake hoard body and adjacent the upper portion of the perimeter. The wake board may have a nose section with a first curved portion which is a concave shape as viewed from the lower surface of the wake board body.

Abstract: A valve assembly for use in an animal feeding teat and an animal feeding teat in combination with the above valve assembly. The valve assembly includes a piston shaft with a piston head, a valve head attached to the piston shaft at the end of the shaft opposite the piston head, and a biasing structure co-operable with the piston head, so that in use in an animal feeding teat the valve head is seated to cover a first aperture in the teat and pressure on the piston head against the biasing structure will unseat the valve head and open the aperture.