Welcome to Washranp LLC, enjoy your shopping Material: Nylon, TPU Features: Breathable, Super Soft, Lightweight, No Odor Size Details: Size Large: 23cm x 2.2cm/9.06" x 0.87" (Approx.) Size Small: 17cm x 2.2cm/6.69" x 0.87" (Approx.) Package Includes: 1 x Protective Case 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. Made of high-quality nylon material, our tracker protective case has the advantages of scratch-proof, waterproof, wear resistance and friendly to skin. High-performance protective case that doesn't block signals or affect positioning. You can use it with confidence. The size of this strap is perfectly compatible with your tracker. Easy to install and disassemble. You can bring any content you want to easily track. Adjustable wrist straps for easy wearing on wrists of all sizes. This product can be easily worn on the wrists of babies, children, and the elderly. Our tracker protective case is the perfect accessory to keep your belongings safe and easily trackable. Perfect gift to prevent loss for babies, children, and the elderly.