Watch band material: silica gel. Clasp: buckle</br>Size S: Dial 3.6*4.2cm. Size S is suitable for children 6-13 years old.</br>Water resist: 50M (do not press button under water.)</br>Features: week?? calendar?? alarm clock?? back light?? stop watch?? 24H time format</br>Colorful back light.</br></br>Product Description</br></br>The perfect combination of fashion and classic?? just design for you!</br><br/>http://www.amazon.com/gp/product/B00P7QKKRU