Description
1. High-strength hard plastic lining, light weight, durable, firm and stable
2. Aluminum alloy lock ring, high strength and durable
force
3. With waterproof and dustproof PVC plug
4. Material: rubber/sponge, aluminum alloy, hard plastic
5. Diameter: about 22.2mm
6. Length: about 13cm
7. Weight: about 89 grams for the unilateral lock, about 135 grams for the double-sided screw thread, about 96 grams for the double-sided sponge, and about 123 grams for the double-sided skull
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