National Nail 136401 Cap Hammer Stapler, 3/8 in, 168-StapleHighlights: No trigger; automatically delivers the holding power of a cap with the speed and ease of a hammer tacker Applications: Residential Roofing & Sidewall Specifications: Weight: 2. 6 lbs. Capacity: 168 caps 168 staples Cap Type: Full 1" Plasti Top plastic Fastener Type: A11 3 8" staples Fastener Length: 3 8" Auto feed WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer and