Review on Dirt Devil Style 1 Vacuum Belt (2-Pack), 3157260001, Black - Reliable Replacement Belts for Powerful Cleaning by Robin Detwiler

These straps work great on my Dirt Devil Ultra. Some reviews indicate that the straps will stretch after a few uses. I've found that if you DO NOT push the machine down while using it, but just let the machine do what it's designed for (vacuuming), the belts don't stretch after such a short time. Also, I find these little devices suck best when they're reaching out for you. If you have to push and pull while vacuuming, make sure to hold the unit level to avoid throwing dirt/debris when you push the unit away from you. I love my little dirty devil to vacuum the camper on the go.