A hobbycraft online exclusivesugru is the worlds first mouldable glue that turns into rubbermould it stick it shape it cure it these three strips of glue stick permanently to everything letting you create alter and fix your day to day essentials surprisingly strong and long lasting once cured sugru is a silicone rubber thats soft with a strong grip to cure it simply leave it for 24 hours putting it somewhere warm will quicken thisif you want to customise your knitting kit create