These rubber bands are color-coded by size for quick, easy use. Assorted sizes include No. 16 in blue, No. 18 in orange, No. 19 in yellow, No. 32 in lime, No. 33 in purple and No. 64 in pink. Rubber bands come in an easy-to-use dispenser box that fits in any desk drawer tray and helps prevent bands from getting tangled.