Rocktape Rockband Micro Grey LightRockBand Micro is a cotton and nylon looped resistance band that can be used for upper and lower body strengthening exercises. This sturdy band is machine washable and comes with an instruction booklet containing an assortment of exercises for the shoulders, core, hips, knees and ankles. RockBand Micro can be used as part of your warm up or as a stand alone strengthening program.