This one-hand riveter set includes 1 Rivet Gun, 4 Drill Bits, 1 Removal Nozzle, 200 Aluminum Rivets (50pcs each size). If the rivets stuck in, you can use the removal nozzle to remove. Extended ergonomic handle: We have extended the handle length to achieve a more effortless effect, and thicken TPR cover provides greater friction and comfort.