Description: 100% Brand new,never been used Main Bracket Material: 6061-T6 aerospace aluminum + stainless steel hardware Max Fixed Round/Square tube 2.5 inch diameter Min Fixed Round/Square tube 1 inch diameter Pre-assembled accessories: 3 sets of U-bolts in varied sizes with matching fasteners Premium dual-material build delivers outstanding anti-rust, anti-corrosion and shock resistance for extended service lifespan. No drilling required for quick bolt-on installation, firmly fastens your high lift jack onto vehicle tubular accessories. Multi-size U-bolt set accommodates diverse tubing specs to satisfy varied mounting demands. .