TOP Loading can be and in the case of OMER designs truly is, a thing of beauty. Smooth, clean magazine style that allows a minimum of moving parts to FEED these Medium Wire Staple Types, through years of steady, trouble free performance. To load, you just straddle the legs of the staple over the RAIL...push the lightly sprung guard off to the side for a moment before you release it, to provide the perfect amount of tension to hold down the staple... crown even when the tool is being inverted for work over head. The narrow nose & single point probe safety type are often characteristics that go unnoticed but only until a new use is discovered that MUST have the kind of sleek dimensions and great length from the bottom of the magazine to the tip of the nose/safety. Getting into places where lesser tools "fear to go."