This Clamp consists of two parts: stainless steel draw hook and reinforced nylon. The open wire hook provide the universal fixating on the closed hook mounts, during aerial fiber optic cable installation. The hook was made as non drop off part. The drop wire clamp has self adjusted wedge, with prevents the cable from damages. The types of optical cables applicable to wedge radius are small circular optical cables and butterfly optical cables.The radius of wedge-shaped optical cable fully meets the requirements of the minimum bending radius of optical fiber.