Features:
Made of high quality material, durable and wear-resistant.
Nice replacement for broken or old one, make your device work properly.
Easy and convenient to install and remove.
With fine workmanship and exquisite appearance.

Specification:
Color: Black
Thickness (Optional): 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.5mm + 0.6mm + 0.7mm + 0.8mm
Size: for Watch Backs Size 13-37mm ( 0.5mm Thickness ), for Watch Backs Size 13-40mm ( 0.6mm Thickness ), for Watch Backs Size 25-40mm ( 0.7mm Thickness ), for Watch Backs Size 28-38mm ( 0.8mm Thickness ), for Watch Backs Size 13-40mm ( 0.5mm + 0.6mm + 0.7mm + 0.8mm Thickness )

Package Includes:
1 Pack of Sealing Ring
Or
4 Pack of Sealing Ring (Include 4 Different Thickness of Sealing Ring)

Note:
Only the above package content, other products are not included.
Transition: 1cm=10mm=0.39inch.
Due to it is a manual measurement, please allow an error of about 1-3 mm.
Due to the difference between different monitors, the picture may not reflect the actual color of the item, please make sure you do not mind before ordering.