This is a really nice kids watch. It lights up in bluered and yellow for 10 seconds with the push of the right corner button. The band adjusts from 5.5-8 inches with 10 holes on the band and a buckle clasp that will fit your childs wrist perfectly. The band also has graphics along the entire length Kids Digital Spiderman watch features a large Spiderman character on the dial with an easy to buckle strap. This kids Spiderman watch includes fun multi-colored flashing LED lights - just press the side button to start the light show! Quartz Movement Case Diameter: 37mm