These double gripping clamps are ideal for use in automotive, electrical, marine, medical, agricultural, and many other applications. Nylon 6/6 material is UL 94 V2 self-extinguishing. Manufactured in the USA and UK. **** Specifications: Inner Diameter Fully Engaged (A): 1.35"/34.3mm, Inner Diameter with One Set of Teeth Engaged (B): 1.49"/37.9mm, Band Thickness (C): 0.078", Width (D): 0.35"