(1) ClearPrime™ ：The Most Cutting-edge Trinity Anti-yellowing Tech
Theory: Filter, Fill, ReClear
Step 1-Filter（Nanofiltration Mesh）
（Process： Reduce Macromolecular Yellowing Substances Penetrating.）
Step 2- Fill (CRYS-GEL™ Innovative Crystal Molecular Filler)
（Process： Occupy Space to Reduce Yellowing Substances Storage.)
Step 3 -Reclear (Blue Resin Molecule)
（Process： Reclear Micro Yellowing Substances, refresh case into clear again.)
(2) CrystalClear :Made of German Bayer ultra-clear TPU and PC materials.
German Bayer TPU and PC materials are currently one of the most transparent and durable materials on the market.
The sales of CASEKOO transparent cases in the Amazon iPhone 11 series, iPhone 12 series, and iPhone 13 series are at the forefront of the market, and the iPhone 13 pro model is currently the top transparent case on Amazon’s Best Sellers. iPhone 11 pro max, iPhone 13 pro, iPhone 13 pro max these models also get Amazon’s choice.