Abstract: A bottle sealer includes a telescopic expansible hollow extension of a balloon shape formed on a disk portion of the sealer sealed in a bottleneck, and in fluid communication with a liquid filled in a bottle so that when the bottle filled with a liquid or water is subjected to a freezing temperature to become ice, the balloon extension may serve as a buffer for absorbing the volume expansion due to a conversion of water into ice.

Abstract: A bottle sealer includes a telescopic expansible hollow extension formed on an annular portion of the sealer sealed in a bottleneck, and fluidically communicated with a liquid filled in a bottle so that when the bottle filled with a liquid or water is subjected to a freezing temperature to become ice, the telescopic hollow extension may serve as a buffer for absorbing the volume expansion due to a conversion of water into ice.

Abstract: A display device includes: a base, a crystal ball mounted on the base, an inner cylinder plugged in an opening of the crystal ball, a musical base driving a lower disk having a plurality of magnets fixed thereon, a creature mounted on an upper disk rotatably mounted on an upper portion of the inner cylinder having ferrous plates formed in the upper disk, so that upon a driving of a shaft of the musical box, the creature mounted on the upper disk will be rotated as magnetically attracted by the lower disk to vividly pose like a sportsman's action.

Abstract: A container has a bottleneck inversely mounted on a base packed by a bell-shape sealer made of elastomer material, of which the sealer includes plural annular extension rings concentrically circumferentially formed on an inside wall of the sealer, adapted to be turned up along the bottleneck to pack the bottle-neck tightly in a base when inversely mounting the container on the supporting base.