1. Name: Extruder feed replacement nozzle repair print tool kit 2. Scope of application: Applicable to all short-range extrusion printers, as well as hot-end models adapted to M7 and M8 nozzles. 3. Product function: The function of the feed tool is to pass the material through the short-range extrusion printer when the material is blocked. 4. The blockage can be removed without disassembling the hot end. The nozzle socket wrench tool makes the replacement of the nozzle easier to operate. At the same time It can be used with the material-passing tool to better deal with material blockage. 5 to printed parts: https://.thingiverse.com/thing:6187543 Material: Plastic+Iron colour: As shown Package Contents: 2 x Grips (Note: Grip colors are random,don't accept the specified color.) 4 x Feeding tools 2 x Nozzle sleeves 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.