A crutch has two bow tubes, a pipe clamped by lower portions of the bow tubes, a hollow mount receiving a lower end of the pipe, an extensible rod inserted through the hollow mount and disposed beneath the pipe, and two columns disposed in the hollow mount. In one embodiment of the invention, a dispenser is provided that includes a fragranced polymer pad. The process of manufacture comprises the steps of sintering the lanthanum oxide concentrate, then washing the resultant media. Meanwhile, the light emitting diode is covered with a silicone lens molded on the package body. Two lip members projecting from the outer edges of the base element, the lip members overlapping and resting on the closest support block and leaving a hollow space between the base element, the lip member and the outer face of the support block.