Durable Material: Made of high quality 304 stainless steel, rust-proof, waterproof, corrosion-resistant, sturdy, durable, and long-lasting. Powerful Function: Adopts an open inner and outer ring structure and fixed with bolts. Smooth surface, resistant to twisting and pressure, tightly locked, and wide adjustment range. Provides excellent sealing with a variety of pipe materials, effectively solving the problem of liquid and gas leakage from the pipe. Easy to Use: Simply loosen or tighten the screw of the hose clamps with a screwdriver to adjust the size, firmly fix the pipes to the fitting. Can be applied to secure pipes, hoses, cables, tubes, automotive, industrial, boats, etc. Package includes: 2 pieces 12 (diameter) hose clamps, fit pipes from 11.5 in diameter to 12.25 in diameter. 100% satisfaction guarantee and reliable customer service within 24 hours.