Suitable for all kinds of crystal, ceramics, wood, marble and other crafts table clock Come with back cover and rubber gaskets to secure the insert in place, which can prevent slight irregularity in the hole. clock insert features a golden/silver colored trim, and black arab numerals for easy-reading. It can be used directly or embedded into wood clocks, hardware clocks, iron clocks, lighting-clocks, etc. Great for DIY crafts or replacing old clock face, and the clear cover reads the-time easily.