Our signature "Stretchables" have become favorites of ours and our customers. Can you blame us? These little guys are not only useful for their stated purpose, but will hold anything that fits. A friend has a 20-gauge 'coach gun' for home defense and keeps its shells in the CR123-size stretchable battery carrier. All sorts of little cylindrical objects will fit, such as lightsticks, oiler bottles, fat permanent markers, flash drives, lighters, etc. Clip them anywhere with the included aluminum carabiner for handy access in the garage, kitchen, car or inside your backpack. They are flat when empty and super lightweight. Buy all you want because there are no "per household" limitations. ; ) Seriously, these are great, multifunctional gifts for your friends AND for yourself.