Middy's Side-Bush Gripper Bead Purple 26-30 are lightweight, discreet, small and pliable. They are made from soft TPE material with a tapered bore._ Simply thread on with a pole-threader and once in place they retain the elastic, but can then also be slid-up the elastic to make small adjustments to the tension._ Available in different colours and elastic bore sizes._ (Image shows range, see description for correct size and colour.)_Colour purple.Three per pack.Elastic 26 - 30.Small and pliable.TPE material.Designed with a tapered bore.Once in place they retain the elastic.