Specification: Model: CN55 Nail Length: 25--57mm Nail Capacity: 300--350pcs Nail Diameter: 2.1--2.3mm Air Pressure: 75-100psi(5-7.5kg/cm2) Weight: 2.5kg Application: wooden packaging, wooden pallets, wooden furniture, wooden houses, fences, plywood etc. Feedback is very important to us. It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business.A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it's non-workdays, please kindly be patient and wait till Monday. Creative Design, Durable Material, Beautiful Appearance.