Serinity 2304 Raindrop hotfix flatback crystals in Crystal are Austrian-made crystals. Available in 10mm and 14mm in retail packs of 2 and 6 and wholesale packs of 96 and 180. 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 bridal accessories, jewellery making, dancewear and costume design. About the Serinity 2304 Raindrop Flatback The Serinity 2304 Raindrop is a raindrop-shaped flatback with a rounded top narrowing to a fine point, suited to trailing arrangements and directional designs. 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.