Mostly used for wallpaper seams. Used for the wallpaper on both sides of the intersection of the rolling, to prevent the edge of the wallpaper rise from the wall SUITABLE FOR ALL WALLPAPER - Can be applied to ordinary wallpaper, thickened wallpaper, non-woven fabrics, fabric cloth wallpaper, foil wallpaper and other special materials. STRONG STURDY WOODEN HANDLE - The handle is made of high-grade solid wood, abrasion resistant, ergonomic design, feels comfortable. The pressure roller needs a certain inclination to the seam. By pressing the air at the seam of the wallpaper, the wallpaper at the seam is more closely connected to the wall, preventing the wallpaper from being curled and slit. WARMING TIPS - 1. Wipe the pressure roller clean before use, especially to ensure that there is no glue on the pressure roller to prevent contamination of the wallpaper surface. 2. Do not use excessive force, resulting in indentation of the wallpaper.3. Try it on a small area at first, master the hardness of the pressure roller, and then use it over a large area in order to prevent damage to the surface of the wallpaper.