Strong magnetic design brings powerful absorption. Metal structure design makes it wear resistant and not easy to deform. Sensitive induction design ensures stable installation. Compact and lightweight design makes it easy to store and carry. It is constructed of metal material. The length of this product is 1.3cm and the width is 1.2cm. It is suitable for bicycle. Item Name: Stopwatch Accessories Material: Metal Features: Strong Absorbing, Sensitive Induction, Lightweight Size Details: Length: 1.3cm/0.51" (Approx.) Width: 1.2cm/0.47" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Stopwatch Accessory