To activate your Light Up Soft Bow Headband, remove the pull tab & press the button on the battery pack. Set your Bow to 1 of 3 blinky functions. One size fits most. Headbands are quite flexible & are wrapped in a soft black fabric. Bow Dimensions: 11.75″ wide & 8″ tall Bow Colors: Assorted Red, Blue & Yellow; cannot pick & choose which color. LED Colors: Blue & Red Comes ready to use with 3 replaceable AG13 Batteries. Packaging: Individually wrapped, poly bag – 12 pieces per bag – 96 pieces per carton.