PowRyte 18 Gauge Air Narrow Crown Stapler with Tool-Free Jam Release Mechanism - 5/8-Inch to 1-5/8-Inch Tool-free jam release mechanism for easy Staple removal No-mar tip included to prevent scarring and denting of a work surface Reload indicator for easy visual recognition of low Staple quantities to avoid dry firing Bottom load MAGAZINE allows for quick and easy Staple loading Operating pressure: 60-100 PSI; nails length: 5/8-inch to 1-5/8-inch