Narrow band design: more concentrated clamping force, lighter weight and less interference 360 stepless design: the of the hose is compressed evenly, and the 360 seal ensures ear width: the deformation size can compensate for the hose hardware tolerance and adjust the pressure to control the clamping effect. Cochlear design: provides a powerful thermal expansion compensation function, so that the dimensional changes of the hose caused by temperature changes are compensated, so that the pipe fittings are always in a good sealed and tightened state. Smooth inner band and uniform compression Suitable for demanding applications where lighter, thin-walled hose or tubing is being used Special process treatment: avoid damage to hoses and safety of work equipment Colour:Red & Silver Material:stainless steel Size: 20pcs 6-7mm 20pcs 7-8.7mm 20pcs 8.8-10.5 mm 20pcs 10.3-12.8 mm 20pcs 12.8-15.3 mm 15pcs 15.3-18.5mm 15pcs 17.8-21mm Package Contents: 130 * Ear Stepless Hose Clamp with plier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.