It's a Hyperbolic Geometry pattern Material : wood Size of pendant : 5.3 cm in diameter. Coated : raw lacquer or cashew-nut paint Length of the chain : 40 ~ 80 cm adjustable Designed and made in Taiwan Thank you Care tips: 1. Do not store them in the sun ,that includes in the car or by a window. But there is no problem wearing them in the sun! 2.Even though they are sealed ,do not swim or shower in them! 3.Please allow for some variation in color as displayed on different devices and screens. Actual colors may vary.