ITEM NAME:Large Diameter Hot Melt Glue Machine Nozzle 1.5X55Mm 2.0X38Mm 3.0X38Mm 3Pcs H2V6 Large Diameter Hot Melt Glue Machine Nozzle 1.5X55Mm 2.0X38Mm 3.0X38Mm 3Pcs H2V6 Rated Voltage:220V Power Source:AC Usage:Home DIY This glue nozzles have different size for the nozzle diameter. the diameter sizes bigger, the glue overflow faster. you can choose the right size for your situation. Caution: If you want to change the glue nozzles. you must wait for 30 minutes to wait the glue gun cool down comletely. Never Press the glue nozzles body when you use the glue gun. Color:yellow Material:metal Size: 1.5*55mm,2.0*38mm,3.0*38mm. Thread diameter: 11mm. Package Contents: 1 * Wrench 3 * Glue Gun Nozzle