Description: 【Rubber Material】: Scuba O Ring Kit is made of rubber and has good sealing properties, ensuring reliable performance of your diving equipment. 【Suitable for diving equipment】: Diving Rubber Orings is specially designed as a replacement seal for submersible pressure gauges and high pressure hoses, providing a firm and tight fit 【Compact Size】: Dive Hoses Ring has an outer diameter of 0.42cm/0.17inch, suitable for applications in various diving equipment settings 【Convenient Packaging】: 20 Sealing Gasket Washers per pack, providing ample supply for multiple replacements or spare parts during your diving adventures 【Must have diving accessories】: Diving Dive Gear Equipment is a must have diving accessory, an essential component for maintaining the integrity and safe of diving equipment by preventing leaks and ensuring optimal performance underwater Size Chart: Outer diameter: 0.42cm/0.17inch Package Includes: 20 Diving Rubber Orings Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.