20.87in Wallpaper Application】 This wallpaper glue machine coater is designed for wallpaper widths up to 53cm, helping apply paste evenly across the paper surface for smoother wallpaper installation and wallcovering work. 8L Glue Tank】 The built-in 8L glue tank holds enough paste for continuous coating, reducing frequent refills during larger wallpaper jobs and helping improve workflow efficiency. Adjustable Glue Thickness】 Adjust the fastening nut according to wallpaper material and paste type to control glue thickness, helping keep adhesive coverage more even across each roll. Hand Crank Operation】 Turn the side handle to feed wallpaper through the roller and apply paste quickly. The manual wallpaper glue coater helps reduce the effort of traditional brush application. Service: We value our customers' shopping experience! If you have any questions, please feel free to contact us, and we will get back to you within 24 hours!