Swarovski hotfix flatback crystals in Ruby are genuine Austrian-made round rhinestones. Available from SS6 (2mm) to SS34 (7.15mm) in retail packs of 15, 20 and 50 and wholesale packs of 144, 288 and 1440. Ruby is a vivid pure red with a bright gemstone clarity. The smaller SS6 to SS12 sizes suit nail art, tooth gems and fine detail work, while the larger SS16 to SS34 sizes suit bridal accessories, dancewear, cheer uniforms and costume design. Which Swarovski Hotfix Flatback Cut Should You Choose? Swarovski produces these round hotfix flatback rhinestones in two precision cuts, each optimised for a different size band: 2038 Xilion Rose — 14 facets, SS5 to SS10. Cut to maximise light return at smaller stone sizes. 2078 Xirius Rose — 16 facets with a star-cut base, SS12 to SS48. Delivers the highest light return in medium and large sizes. Hotfix flatback crystals feature a factory-applied heat-sensitive glue on the reverse side, bonding permanently to fabric, felt and foam with a hotfix applicator or wax-tip pick up tool. No separate adhesive is needed, giving you clean, consistent placement every time. Genuine Swarovski, Supplied Direct Bluestreak Crystals is a Swarovski Authorised Distribution Partner, supplying genuine precision-cut Austrian crystal direct through the authorised channel. Every order is dispatched the same or next business day. Available in retail and wholesale pack sizes. Browse the full range of Swarovski hotfix flatback crystals or visit our Swarovski crystals collection for the complete range.