Material: 4 pieces good sealant finishing tools, the black one is made of hard plastic; The others are made of flexible plastic, durable and not easy to be broken though you break it hard Simple to use: use directly without masking tape or cleaning afterwards, save time, easy to use and handle, make your silicone sealant seal work like a professional plumber Silicone finishing tools: it's an good tool for smoothing sealing lines, caulking lines; Finish to most silicone jobs, any edge, corner, joint Save cost: the caulking tools are very easy to clean with a damp cloth and reuse, reduce the waste of sealant, no need for masking tape, convenient and quick to use, saves money and time Wide use: apply to kitchen bathroom fitter sink, DIY works or floor silicone sealant sealing; Works with most types of sealant, silicone, acrylic, resin, grout and more