1. Easy to operate and carry. 2. For sealing hoses against loss of liquid, air or gases. 3. Material: stainless steel 4. Clamp assortment kit are flexible and ductile with wide adjustable size range from 5.0 to 31mm. 5. Wild usage: Clamps are used in securing hoses, pipe, cable, tube, fuel lines etc. Perfect to apply in automotive, industrial, boat/marine, shield, household etc. both indoor or outdoor. 6. Packaged: 5-7mm x 20 PCS 7-9mm x 20 PCS 9-11MM x 10 PCS 11-13MM x 10 PCS 15-18MM x 10 PCS 13-15MM x 10 PCS