ZIPPER POUCH IDEAL FOR HOLDING ID, KEYS, MP3 PLAYER, ETC. WHILE RUNNING OR EXERCISING. ONE SIZE FITS ALL CONVENIENCE. PLASTIC BELT WITH PLASTIC CLIP BUCKLE ADJUSTS FROM 24" TO 44" AND STRETCHES TO OVER 60". 6 1/4" W X 3 1/4" H X 1/2" D