Package includes:40pcs x Glass Balls(other accessories demo in the picture is not included.)
Diameter: app.10mm/0.39in
Material: glass

Color: transparent
Features:
Made of plexiglass material, solid marbles, transparent, smooth surface, heat 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.
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.