Time-saving and efficientGypsum board plasterer is equipped with an internal corner glue application roller and a flat roller for easy and quick change. This helps you work efficiently and repair cracks quickly. There is an adjustable handle on each side, usable for left or right hand. The 4 adjustment knobs help control the amount of mud. How to Use Unlock the latch closure of the dry strip tool Pour the mixture Start grouting the partition Cut the joint with a flat blade Use the large wheel for corners and the serrated wheel for flat surfaces. Crack Repair and Traditional ConstructionClean the plasterboard joints thoroughly, fill them with jointing putty, then pour white latex, and stick the strip in the middle of the joint with the tool. Drywall tools can also be used for internal corners, edges and all types of partitions and walls. Quality MaterialsGlass joint tape is made of quality materials, the durable polycarbonate body eliminates scratches and bent components, extending its lifespan. The dry tape strip features a latch closure that makes it easy and quick to open for loading tape and mud. Versatile useBanjo plasterer Suitable for all types of partitions and walls - Can be used for smaller jobs, decoration, extensions, renovations or narrow spaces like cupboards, corners, walls and ceilings. If you encounter any problems during use, please feel free to contact us, we will provide you with satisfactory after-sales service.