Clock size is 12 inches in diameter. Come with 12 different popular(OG) AJ Retro mini sneakers All mini sneakers are relocatable, it's stick to the clock base with a magnet. Require AA Battery. SPECIFICATIONS: •Material: MDF (body) & PVC (shoes) •Size: 12 inches •Clock Mechanism INSTALLATION: 1. Find the little Circle sticker that came with the package, places it into the clock hours location where the white dot indicated. 2. Remove the double side tape and put the magnet on top. 3.Insert the Magnet into the mini sneakers, and place the mini sneaker to the clock, both magnets will hold the mini sneaker in position.