Thank you for viewing! This is an oil-filled keychain made with resin. Because it contains oil, it doesn't make a "shaka shaka" sound. There may be imperfections such as dust, uneven coating, scratches, distortions, air bubbles, burrs, and dirt. The color may appear different from the actual product depending on the lighting and the device you are using. Please purchase only if you understand that this is a hobbyist creation. If you have any questions, I will answer them in the comments section.