38 mm Clear, Non-Perforated Heat Shrink Bands, printed in black with “Sealed for Your Protection”. These shrink bands will fit our 120 cc and 150 cc Vitamin Bottles and any other bottle or container with a 38 mm cap size. These also fit our 1 oz, 2 oz, and 3 oz. roll on bottles. You will need a high heat source, or our heat gun. NOTE: IF YOU ARE BUYING THESE FOR 38 mm CRC CAPS, they will not fit, as the CRC caps are much wider — please purchase the 45 mm shrink bands instead.