Abstract: An inflatable seat, especially a ball-shaped seat, that includes an air-tight envelope surrounding a cavity filled with a gaseous medium such as air or gas, and a removable cover over the outer surface of the envelope which defines an opening for a portion of the outer surface to contact a flooring surface.

Abstract: A binding for snowboards and the including binding base plates (1a, 1b) which are attached on the snowboard, two binding carrier plates (2a, 2b) which are provided with fastening apparatuses in order to be fastened to one shoe of the rider of the snowboard, with holding elements (3a, 3b) being provided on the binding base plates (1a, 1b) which are designed to hold the binding carrier plates (2a, 2b), but to release the same at a predetermined releasing force, and with a connecting element being provided in order to forcibly release the other binding carrier plate (2a, 2b) from the binding base plate (1a, 1b) during the release of one binding carrier plate (2a, 2b). A secure release is achieved in such a way that guide elements (8a, 8b, 13a, 13b) are provided on the binding base plates (1a, 1b) which allow the release of the binding carrier plate (2a, 2b) only in the longitudinal direction of the snowboard.