FIBRE MATERIAL: These 110 washers are made of high-quality fiber material, which is durable, long-lasting, and suitable for use in plumbing applications and as buffers and packers. VERSATILE SIZES: The pack includes 8 different sizes of washers, ranging from 10 x 3mm centers to 30 x 16mm centers, making them versatile and suitable for various tasks. INNER & OUTER DIAMETER: The washers come in various sizes, including different inner and outer diameters, ranging from 3 x 10mm to 16 x 30mm, ensuring a snug fit for different applications. HANDY STORAGE CASE: The pack comes in a storage case with separate compartments, which is convenient for organizing and accessing the washers. SUITABLE FOR DIY & PROFESSIONAL USE: These fiber washers are an essential addition to any plumbing or DIY toolbox, and they are suitable for a range of tasks, including repairing leaks, packing, or as a buffer. They are perfect for both professionals and DIY enthusiasts alike., Weight: 0.1984160358 pounds, Manufacturer: Dapetz