QUALITY MATERIALS: The drum rims are made of high-quality wood, which is sturdy and durables, and to moisture and The iron sand beads inside create a better wave sound. HEALING SOUNDS: The wave drum is a percussion instrument that has a full, warm tone and simulates the sound of waves lapping against the shore It has a warm and soothing tone that allows the listener to experience the sound of real ocean waves. You can take them to schools, concerts, parties, concerts, etc. to play Sea wave drums are very easy to play, both professional musicians and beginners can master it, but also can be played with other instruments to enrich the layers and expression of music Colour:As Shown Material:Plastic+wood+metal Size:8 inches Package Contents: 1 x Double sided wave drum Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.