Caulking tools make corners without wasting caulking, silicone or grout, the smooth back side can easily remove excess sealant from the seam, they are smooth sealing lines, Effective tool to apply 4 different blade edges at any edge, corner, seams, caulking tools reusable, easy to clean with a damp cloth, easy to store and carry, helping to reduce costs and can be used in kitchen bathroom sinks , DIY engineering or floor silicone sealant seal, suitable for most sealants, silicone, acrylic, resin, grouting, etc. NOTE: 1.Product are taken in kind, but because of lighting problems, pictures may have a slight chromatism. 2.Due to the difference between different monitors, the picture may not reflect the actual color of theitem. Please consider this before the purchase. 3.Please allow slight deviation for the measurement data.