Abstract: Disclosed is a knockdown golf training site in the form of a billiard table formed from a plurality of frame members assembled with a plurality of side and corner ball cavities and a ground carpet onto which the assembled frame members and ball cavities are detachably attached. The knockdown golf training site can be easily disassembled and packed in the ground carpet to be conveniently stored on a car, so that it can be carried to be assembled for use outdoors at any time either for practicing putting golf balls into holes or for conducting a billiard game with golf balls and clubs.

Abstract: A flush valve of a toilet that includes an internal valve piece and an external valve piece. The external valve piece is circular and is installed inside a circular hole which includes a circular flange that engages the internal valve piece. A rear side of the internal valve piece includes a resilient portion formed from gelatinous material so that the internal valve piece serves the purpose of delaying the reset action. Basically, in the first stage the flush handle is rotated by the user to open the internal valve piece. Thus, the drain rate of the water box is slower. In the second stage, the flush handle further is rotated to a position to engage the internal circular flange of the external valve piece so as to open the external valve piece. Therefore, the drain rate becomes much faster. By the two stage flushing process, the user can regulate the drain rate, thus conserving water.