/Features: 1. Adopting retro craftsmanship, the design is more fashionable and elegant 2. No battery drive required, using spring drive, similar to the working mode of a quartz clock 3. This product can be used both in competitions and at parties, with a of usage scenarios 4. Use high-quality materials to make the product more sturdy and durable Specifications: size: 14.8 x 4 x 9cm Material: plastic colour: black Package Contents: 1 x Chess Clock 1 x English instructions 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.