Our Needle Felting Tool by Clover has five barbed needles that catches the wool roving fibers and pushes them into the bottom of the fabric. The wool roving fibers stay permanently without using glue or sewing it. The tool comes with a clear lock cover for safety and storage. This product is perfect to use with our Needle Felt Brush Mat (sold separately) for beginner to intermediate felters. The tool measures 8.6 x 3.5 x 1.6 inches (218mm x 89mm x 41mm).