Features: Ocean wave drum is made of wood, with small metal balls in it. Just tilt the drum to let the metal balls roll, then it will create wonderful ocean wave sound. Suitable for developing children's musical talent and improve their sense of rhythm. Delicately polished surface, well made cover, comfortable for kids to hold. With a diameter of 10 inches, lightweight but firm, 2 colors for option. Specifications: Color: Red / Black(Optional) Main Material: Wood Item Weight: 277g / 9.77oz Item Size(Diameter): 10-inch Package Weight: 278g / 9.81oz Package Size: 25.4 * 25.4 * 4cm / 10 * 10 * 1.57in NOTE: 1. Beware of that there are lots of metal beads inside the drum, please prevent children from swallowing if the drum breaks. 2. The pattern on the drum is delivered at random. Package List: 1 * Ocean Drum