The use of simple structural design allows you to install the case easily. Your watch can be well protected as it features anti-fall and scratch-resistant. Made of soft TPU material, the watch protective case is lightweight and comfortable. The diameter of the product is 45mm/41mm. It is compatible for Samsung Galaxy Watch 3. Item Name: Protective Case Material: TPU Color: Black, Blue, Orange, Purple, Matte White Style: 45mm/41mm (Optional) Compatible Models: for Samsung Galaxy Watch 3 Features: Anti-fall, Scratch-resistant, Easy Installation Size Details: Diameter: 4.5cm/1.77" (Approx.) Diameter: 4.1cm/1.61" (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 Protective Case (Watch Not Included)