Fits wrists 6″1/2 in to 9 1/4″. Width 11/4″. 3/4 lb each band. These wrist weights are perfect for arm toning with a wide range of exercises to include dance, Zumba, Pilates, core fusion, step, yoga, barre, boxing, spin, aqua, and martial arts. Great for walking and running. Can be worn throughout the day with easy to remove weights for maximum comfort.