1. Material and Size The head of this caulk kit is made of rubber and handle is made of ABS. The 8.6inch comfortable handle has 4 different tip sizes, about 0.8inch, 1.1inch, 1.4inch and 1.7inch. It can ensure to apply sealant evenly on uneven surfaces, saving material time. 2. Caulking Kit a set just for you, our product includes a versatile set of 4 different sized rubber caulking finishing tools that are suitable for both s and beginners; They are easy to use, making your caulking and grouting tasks simpler; These tools help you accomplish your tasks efficiently 3. Washable and Reusable Each caulking finishing tool is reusable. After using, simply rinse or wipe with water or a damp cloth. Once it gets dry, you can store it for next use. Note: Please wipe off stains before drying. 4. Better Caulk Smoothing Tool with its various sizes of tips, it can easily fit into nooks and corners, effectively smoothing the applied caulk for a better, neater finish; Whether you're a builder or a DIY enthusiast, this tool is the choice; It works efficiently on different surfaces and materials