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This little dispenser clips right onto the leash ring and doesn't weigh down the handle at all. The brass grommet at the bottom makes pulling out a single bag clean and easy, even one-handed.

Wasn't expecting much but this thing is tiny and doesn't swing around when we jog. The bags pull out clean through the brass grommet and there's still a bit of wiggle room left in the roll.

This clips onto the O ring on my leash and actually stays put, even when my dog lunges at squirrels. The bottom grommet dispenses bags smoothly one at a time, and it's light enough that it barely dangles. Fits a full roll with a bit of room to spare, which is exactly what I needed.