To activate your LED Light Up Suspenders press the button on the battery house located at back of the suspenders Activate 1 of 3 light modes flash blink steady Lower back fabric is able to stretch an additional 9 5 which brings overall Suspenders Length to 53 5 at its longest Comes ready to use with 2 replaceable CR2032 Batteries Specifications . Color Green. Adjustable Length 35 44