A sports racquet extending along a longitudinal axis. The yoke is attached to and spaced from one end of the tube and is aligned with the tube to permit that one end of the plunger, sliding toward the yoke, passes between legs of the yoke. The inner surfaces of the scouring fingers engage for cleaning the lug nut or lug nut cover. Other dielectric materials may be formed within the opening in addition to the silicon dioxide-containing composition formed from the spin-on material. Transportation of the grain by means of the transportation gas at this temperature prevents the grain from crushing.