With the press of a button, these LED light up slap bracelets feature 3 different modes of light: slow flashing, solid light, strobe flashing. These safety wristbands can wrap around your wrist in a single snap action. They also feature a hole on one end for hanging. The Lithium cell CR2032 3V batteries come installed and are interchangeable. If ordering assorted colors, minimum order per color is 100 pcs (sold in increments of 50's). Imprint your company name and logo to promote safety and more!