Wood Type:Spalted Maple with translucent black resin that creates a river effect in middle. My handmade clocks offer a unique one of a kind piece that is sure to stand out from the ordinary. All clocks include key holes for easy hanging, and flush mounted silent sweep mechanisms using a AA battery (battery included). Woods, patterns, and colors will vary slightly form clock to clock, which is why you are sure to get a one of a kind piece All clocks are Resined that produces a light beautiful sheen with great protection.