GOXBERK Fish Tank Vase Filler Machine Beads Solid Marble Bouncing Ball Pinball Machine Clear Glass Marbles Glass Ball Glass Marbles Transparent Ball

Diameter: app.10mm/0.39in,14mm/0.55in,16mm/0.63in Color: transparent Package includes:20pcs/pack x Glass Balls(other accessories demo in the picture is not included.)Quantity: 20pcs/pack Material: plexiglass Features: Made of high-quality plexiglass material, solid marbles, high precision, transparent, smooth surface, heat resistance, wear resistance, impact resistance and durability. Just hold the cold marble balls in hand to bring you back to childhood. Everyone has such fond memories of playing with glass marbles when they are young. Playing marble ballls are an old-fashioned game that helps children find interesting pastimes without electronic devices. Whether in the Chinese checkers, marbles track or traditional marbles games, playing and trading marbles is full of fun. Spherical balls provide an aerodynamically superior flight pattern as circular objects tend to equalize wind resistance during flight. Objects that minimize friction maximize centrifugal thus increasing the speed of the ball strike. Sling ball marbles is perfect for goal practice and hunting. Marbles are used as decorations for vases and aquariums to add fun and pizzazz. These balls can also be used for physical therapy by mobilizing the muscles of the hands and feet. You can also paint with glass marbles on paper. They are also fun tools for teaching sorting and modeling in school. However, imagination is the key to exploring these particular marbles.