Ready to assemble mechanism for easy assembly can be applied up to a diameter of 100 cm can be applied up to a diameter of 50 to 100 cm numbers 5 cm long hand opening 13 cm mechanism 9 cm (hanging on nails) material wood (non-sticker - non-deformable durable material) figures stick (good quality) sticky) clock mechanism: silent sweep movement special design laser cut hour and minute hands are metal. it works with 1 aa battery. ready for assembly. you can apply directly to the wall by removing the protector on the back of the pieces. you can use a damp cloth during cleaning. the products you buy from ''wirehome'' are covered by warranty. please pay attention to the seller you purchase this product from. you can see it under "other sellers of the product". more than 100 stocks are available to be sold at the campaign price. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.