The wire tensioner crimper is designed for those who are still using the traditional manual way of pulling people silk nest box design. Using this tool, the wire or stainless steel wire is fixed to the nest box. Features: Wheels are made of metal and will not be cut or damaged by the frame wire. Placed on the completed wire, grip tight, then pull along the wire, it will crimp the wire and tighten in one movement. Retractor tool is designed for those who are still using the traditional manual way of pulling people silk nest box design. Used to provide tension to lose frame wire. Using this tool, the wire or stainless steel wire is fixed to the nest box. Specification: Condition: 100% New Color: Orange Material: Plastic + Mental Size: 135 x 65 mm / 5.31 x 1.65 inch (appr.) Package Included: 1 x Wire tensioner crimper Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.1Wheels are made of metal and will not be cut or damaged by the frame wire. 2Placed on the completed wire, grip tight, then pull along the wire, it will crimp the wire and tighten in one movement. 3Retractor tool is designed for those who are still using the traditional manual way of pulling people silk nest box design. 4Used to provide tension to lose frame wire. 5Using this tool, the wire or stainless steel wire is fixed to the nest box.