This is a brand new Amtech B3400 heavy-duty rivet gun. It features strong PVC handles and a safety catch. The rivet gun comes with 4 interchangeable nozzles and 60 assorted rivets in the following sizes: 3/32" (2.4mm), 1/8" (3.2mm), 5/32" (4.0mm), and 3/16" (4.8mm).