3-1/2″, Plastic Collated Framing Nailer, Accepts 2″ & Up To 3-1/2″ Plastic Collated Framing Nails, Selective Actuation Allows For Quick Transitions Between Sequential & Contact Nailing With The Flip Of A Switch, Tool Less Depth Adjustment Dial Allows User To Countersink Or Flush Drive Nails Into A Variety Of Materials Without Having To Adjust The Pressure At The Compressor, 2 Piece Anodized Aluminum Magazine, 2 Step Nail Loading & Rubber Grip For Comfort & Ensures A Secure Grip.