Resin Planar Cameo Backs for resin or glass cabochons. They are all suitable for 25mm cabochon centres except one set of light blue which would suit 20mm centres. They are brand new and have never been used. You can pair them with my other listing "DIY Elastics for Hair Bows and Hair Bobbles Job Lot". if you would like to make them into hair bobbles. They can also be used for keychains.