Removing silicone and acrylic: the joint smoother is suitable for silicone, acrylic, resin, grout, and more. A must-have tool for any tiler: this item makes it easier to work with joint compound, such as when lifting and smoothing, in different shapes and sizes. 5 different straighteners: this kit contains 5 different straighteners that can be used with various angles and curves. Easy to use: with our cast iron straightener set, you can work easily with silicone when finishing edges or angles. No need for soapy water: helps prevent loose silicone edges that can trap moisture and bacteria. No adhesive required. Pack of 5 joint smoothers: this set simplifies working with joint compound in many shapes and sizes. This grout smoother works with silicone, acrylic, resin, grout, and similar materials. The kit includes 5 different straighteners for use on various angles and curves. Made of silicone, it does not scratch or mark the work surface. Features: no need for soapy water, helps prevent silicone edges from trapping moisture and bacteria, no tape required, saves time and sealant, easy to clean, reusable, abrasion resistant, durable, acid resistant, and made from elastic plastic. Technical details: material: silicone, weight: approximately 0.65 kg. Suitable for complete removal of fresh grouting material. For standard 3–8 mm straight joints without pressure or tension load (e.g., windows, mirrors, sinks). For standard 10/14 mm wide joints without tension or pressure load (e.g., floor finishes, wall tiling, masonry, renovation of old buildings) from 3/6/8 to 10 mm. For curved standard joints with tensile or pressure load (e.g., bathtub, shower, kitchen countertop, floor-to-wall tile connections) 12/15/22/26 mm. For expansion joints (e.g., floor) 13 mm hollow for edge finishes. Contents: 1 set of 5 joint straighteners.