The present invention discloses a rest for the handle of a golf club which rest can be placed in a supporting surface; e. Each chamber has an air pocket and a buoyant member which floats at the airwater interface, and such air pockets expand and contract upon receipt of additional amounts of air from below and release of some of the air, usually to a chamber above. The chair has an upright position where the backrest is mounted at an angle that is greater than substantially 90\xb0 relative to the seat. Described herein are methods of preparing and methods of using the chlorite formulations described herein. The spring holder fastens end portions of a corrugated tube and a net tube which form the protective tube, and the net tube is disposed along the leaf spring. In one embodiment, an RF power transistor has an impedance matching network including an integrated shunt capacitor as described herein.