1. The surface is smooth and clean, the surface is metallic, strong and beautiful 2. The force is uniform, the thread is clear and accurate, and it is not easy to slip during the process 3. Aluminum alloy material, not easy to rust 4. A variety of specifications, wide applicability 5. Material: aluminum alloy 6. Application: suitable for all kinds of photographic equipment 7. Process: fully CNC machining, oxidized black 8. Weight: A18/A20/A29/A30 is about 6.6 g/piece, A19/A31 is about 6.5 g/piece, A21 is about 7 g/piece, A22 is about 7.3 g/piece, A23 is about 8.6 g/piece, A24 is about 2.7 G/piece, A25 is about 2.6 g/piece, A26 is about 2.9 g/piece, A27 is about 3.4 g/piece, A28 is about 3.6 g/piece, A18 is about 6.6 g/piece, A32 is about 6 g/piece, A33 is about 5.3 g /Piece
