Serinity 2740 Triangle Right Angle hotfix flatback crystals in Crystal are Austrian-made crystals. Available in 8mm and 10mm in retail packs of 2 and 4 and wholesale packs of 108 and 216. Crystal is a clear colourless rhinestone that reflects all wavelengths of light equally, producing a bright white sparkle suited to any colour palette. Suited to nail art, bridal accessories, dancewear, cheer uniforms, costume design and fashion embellishment. About the Serinity 2740 Triangle Right Angle Flatback The Serinity 2740 Triangle is a triangular flatback with a faceted table, suited to chevron patterns and geometric panel work. Hotfix crystals carry a factory-applied heat-sensitive adhesive on the reverse, bonding permanently to fabric, felt and foam with a hotfix applicator or wax-tip pick up tool. No separate adhesive is needed, giving clean and consistent placement every time. Serinity, Made in Austria and Finished in the UK Serinity is Bluestreak Crystals' own crystal brand. The crystals are manufactured in Austria, then quality-checked and packaged at our UK facility. Every order is dispatched the same or next business day, in retail and wholesale pack sizes. Browse the full range of Serinity hotfix flatback crystals or explore our complete Serinity collection.