1. Material: 316 stainless steel 2. Scope of application: ships, yachts, ships, etc. 3. 316 stainless steel material, corrosion resistance, not easy to rust, strong and durable 4. Rigorous workmanship, fine polishing, using fine grinding mirror polishing 5. Adapter screw: M5 6. Specification: 22/25mm 7. Weight: about 178 grams for 22mm, about 207 grams for 25mm
