Jaw cover: for UP360 universal 6-inch (about 15.2 cm) prism-style jaw cover is made of Quality materials, which can be used for any metal head, and is used for fixing wood, metal, plastic, pipes and threaded articles to safely protect any product plane or circle. Scope of application: magnetic jaw cover is suitable for all kinds of pliers: bench pliers, drilling pliers, milling pliers, etc. Allow the jaw cover to be used on 4-inch pliers. If you have 4-inch (about 10.2 cm) pliers, you can easily trim the extra mandibular sleeve. Usage: that the is firmly installed on the workbench, and it is safe to rotate the base lock. Turn the vise handle counterclockwise to open the vise. Place the product between serrated jaws. Turn the handle of the vise clockwise to close the vise until the jaws fit, and continue to tighten it 't move any more articles. Do not over-tighten, as this may damage articles and pliers. After finishing machining, turn the screw handle counterclockwise to release the product. Safety information: Misuse of the visor can cause serious injury to eyes, hands and other body parts. Pliers must be installed and used correctly. Before setting and using, please read, understand and follow all the instructions outlined in the manual. Material: plastic colour: green Package Contents: 2 x Jaw Cover set 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.