We have these little newborn umbilical cord clamps for use when making your reborn doll babies. They measure 5cms long. We have them in a 5pk so that you can make 5 from one rubber glove as in the instructions below. How to make in just a few minutes! Using a finger from a clear rubber glove, a strand of blue and a strand of red wool & a few dabs of clear drying craft glue along the wool,twist up and clip a cord clamp on one end, then glue a magnet on the other. Next glue another magnet on the back of the tummy plate which will hold it in place. If you dont wish to use magnets, another option is to make a small hole if the navel and push a bit of the rubber finger thru and glue at the back of the tummy plate.