Modern Huge DIY Art Wall Clock, Silent Non-Ticking, House Decor, Sliver Material: acrylic mirror Surface, EVA foam stickers; Hour hand length: 31.4cm /12.4" ; minute hand length: 39cm / 15.3"; clock face diameter(advised):90cm-100cm/ 35.4''-39.4"; Advise DIY finished size: 100cm x 100cm /39.4" x 39.4"; The clock is silent, non-ticking, which will give you a peace time to work, read, or enjoy your sleep; Needs 1pc AA battery (NOT included); run on average carbon battery, please do not use high duty batteries