Oetiker 16700009 Stepless Ear Clamp, One Ear, 7 mm Band Width, Clamp ID Range 9.8 mm (Closed) - 12.3 mm (Open) (Pack of 50) Genuine oetiker clamps 360 stepless design - no steps or gaps on inner circumference Narrow band, concentrated seal compression Specially formed strip edges reduce the risk of damage to the part being clamped Please note - the size of the clamp denotes the inner dimension (id) of the clamp