Material: PVCColor: BlackLength: 90cm/35''(appr.)Wide: 30cm/12''(appr.)Power supply: Battery(not included)Package included: 1 pcs X butterfly wall clockThe installation step of the sticker:Step1: Make sure to obtain a clean，dry and smooth surface.Step2: Cut roughly around of each sticker to paste each element on the wallStep3: Place your stickers with adhesive tapes(non fournis) without removing sticker back.Step4: Once placing is ok，you can start the application.Press firmly on each sticker to paste of bubbles under the sticker，remove them by rubbing over with a clean and dry duster.Step5: For ease removing your sticker，use a hair dryer before peel of the wall.