Features 1、These hose clamps are made of iron and the surface is plated with zinc 2、Double wire designed screw clamps are very useful and provide great clamping force 3、The smooth edges of the round wire are harmless to hands or hoses 4、Double iron wire are more stronger and can be used for long time fastening 5、Convenient to use, simply release and tighten the screw to adjust the clamp diameter Specification Features: These hose clamps are made of iron and the surface is plated with zinc. Double wire designed screw clamps are very useful and provide great clamping force. The smooth edges of the round wire are harmless to hands or hoses. Double iron wire are more stronger and can be used for long time fastening. Convenient to use, simply release and tighten the screw to adjust the clamp diameter. Specifications: Material: Iron Surface Finishing: Zinc plating Color: As picture Adjustment Range: 3-4mm/0.12-0.16in Size: 13mm-16mm, 16mm-19mm, 21mm-25mm, 25mm-29mm, 28mm-32mm, 46mm-51mm, 52mm-57mm, 59mm-64mm, 71mm-76mm, 94mm-100mm(Optional) Quantity: 10pcs Package Includes: 10 x Hose Clamps Package List