1. [High-quality material] The surface treatment is delicate and smooth, not easy to stick, and can effectively improve the flatness of the tile gap. Made of high quality stainless steel, durable and reusable. 2. [Size] Metal Ball Diameter: 19mm, 12mm, 15mm, 10mm, 11mm, 8mm, 7mm, 5mm; Metal Ball Length: 13cm 12.8cm 12cm 11.5cm The caulking trimming tool is made of high-quality high-speed steel, durable and repeatable use. ABS plastic handle for comfortable grip. 3.Easy to useDouble head design, 8 different sizes of metal ball/ball head/round head, single knife double head design, large and small pattern, good practicability. For quick pressing of tile grout paint, filling tile grout. 4. [Essential tool] It can improve work efficiency and product quality very well. For quick pressing of tile grout coatings and filling of tile grout. It can effectively improve the flatness of the space between the tiles. 5.Wide range of applicationsA caulking tool, widely used for walls or floors in bathrooms, kitchens, balconies, entrances and other parts of the house. Useful for making large dots, smooth lines or reliefs on soft metal or paper for crafts like clay, art projects, sculptures, and also a great tool for fondant cake molds.