Product parameters: 1. Vertical tube height: 310mm 2. Size: 285x310mm 3. Horizontal leg tube length: 285mm 4. Aluminum alloy tube diameter: 22mm 5. Place the guitar above the ground: 40mm or more 6. Net weight: about 375g 7. Bracket body tube: high strength aluminum alloy (oxidation + sandblasting) 8. Bracket connection kit: pure ABS 9. Bracket feet: injection-grade rubber 10. Bottom bracket body: Galvanized steel 11. Bracket kit: high-density rubber-plastic tube 12. Top piano pad: high elasticity E 13. The maximum vertical load of the bracket part: greater than or equal to 35kg 14. Maximum load of horizontal pipe at the rear of the shelf: 15kg or more 15. Maximum anti-shovel strength of the pivot shaft limit point on the top of the stent: greater than or equal to 7kg