This is a hard-to-find, transparent pink silicone rubber. It's mainly used for transparent pink stones, such as those with rutile inclusions or rose quartz. It's difficult to obtain and is considerably more expensive than regular elastic cord. Sizes available are 0.5mm and 0.6mm in thickness. Items will be shipped as shown in the images. Brand new, unused! I am selling it because I no longer have the opportunity to use it as I am graduating. Price is not negotiable. #OperonRubber #SiliconeRubber