This Pegasus serger is a heavy-duty, high speed machine with a top feed is designed to sew up to 8500 stitches per minute. It is especially made to sew lightweight to medium weight goods. Most often the machine is used to serge kitchen and bathroom rugs. It sews rubber and latex backing without difficulty. The machine is easy to operate and maintain. It also has a built in knife mechanism to trim goods before serging the edges.