Abstract: A waste disposal container having a non-removable, permanently sealing, threaded closure. The closure consists of a outer cap and a inner, threaded base cap having one-way, interengaging ratchet teeth which affixes the closure to the neck of a waste disposal container. When the base cap is threaded on the threaded container neck, suitable adhesive is applied to the interior threads of the base cap and to the exterior threads on the container neck thereby permanently sealing the container.

Abstract: This skateboard has a central section which is supported by longitudinally spaced wheel units under its end portions. A forward extension unit connects with the forward end portion of the central section and is preferably of arcuate shape, in longitudinal section, and extends forwardly and upwardly. The length of the forward extension unit is in the order of about one-half the length of the central section. Connecting means, as holes, are provided in the forward extension unit so the lower end portion of an operator support rope may be connected with a selected one thereof and thus the angular relation of the support rope and the operator's arm engaging the rope to the plane of the forward extension and the central section may be maintained in the range of 60.degree., with a variation of plus or minus 7.degree., and this for all average people regardless of their individual heights.