How to print on silicone wristbands? wristbands jigs making

How to print on silicone wristbands?

    As the pricture shows: it is 1 inch silicone wristband holder jigs, 1 for adlut size, 1 for kids size; You need this holders for screen printing, this jigs can hold the silicone wristbands on the silicone wristbands printer;