Color:Black Effect reference size: 28x28cm /11 x 11inch(approx) A mini hook comes together as free bonus Apply on walls(any dry,smooth,dust free surface) This item is a DIY product.It comes all the parts separately.It should be put together by yourself.You can design the different shape by yourself Package Content: 1 x Wall Clock Design Mirror Effect Wall Sticker(battery not includ) Transition: 1cm=10mm=0.39inch. Note: 1.Please allow 0-2cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!