Instructions: 1,Use the correct head for the connector,the head can be rotated 2,Open the handles,and then insert the connector with cable into the holder 3,Squeeze the handles. 4,Adijust the adjusting screw to suit different length of connectors. Features: ergonomic design. Adjustable compression tool with comfortable grip. Hardened steel construction with black oxide finished. Pre-calibrated and easy to use. Universal compression/crimping tool: 3 in 1, For F Connector Compatible with almost all connectors, e.g. , Digicon, , , and Snap and Seal, Ultrease, Stirling, Lock and Seal, etc Perfect for Satellite TV, CATV, Home Theater, and Security Permanent connection so your connector never comes loose For indoor/outdoor use for a tight weather sealed connection Compatible with RG6, RG59, and RG11 compression connectors Colour: Blue+Black Material: PP+metal Package Contents: 1 x Coaxial Cable Crimper 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.