PREMIUM HIGH QUALITY - These hose clamps are fully made in 300 series stainless steel for band, housing and 5/16” slotted hex head screw. The whole stainless steel construction provides solid and strong performance in anti-corrosion, water-proofing, durability and long life-cycles ADJUSTABLE WORKING RANGE – 1/2” hose clamps with flexible working range from 11mm - 23mm same as 0.43" - 0.91", generally it is used in securing hoses, pipes, tubes, lines and cables in multiple situations EASY TO USE AND INSTALL - The stainless steel clamps is designed with inner worm gear to smoothly adjust the working diameter to precisely fit hose & pipe size. Please select appropriate clamp based on your Hose OD. Ultimate Torque can reach 60in.lbs. min. (6.8Nm) and Installation Torque in 35 - 45in.lbs (4.0 - 5.1Nm) WIDE INDUSTRY APPLICATION - Perfect to apply in Automotive, Agriculture, Construction, Housekeeping, Indoor and Outdoor. It is also well suited for Marine applications. Multiple use in different condition and environment. 10 PIECES IN PACKAGE – Total 10 pieces in one box as a set. Roadformer dedicated private label package does means quality, commitment and reliability. We set quality standard.