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 12 PCS 7-9MM x 12 PCS 9-11MM x 12 PCS 11-13MM x 12 PCS 13-15MM x 12 PCS 15-18MM x 10 PCS 17-20MM x 10 PCS 20-23MM x 5 PCS 23-27MM x 5 PCS 25-28MM x 5 PCS 28-31MM x 5 PCS