What is a super tough lens?

KR ultra-tough lens is a patented product of Yue Mingjing lens, which is not fragile, safer and has stronger impact resistance.

The molecules of ordinary lenses are linear and unstable, so under the impact of external force, the molecular chain is easy to break and cause fragmentation. However, the molecular structure of KR ultra-tough lens presents a network cross-linked structure, which can interact and support after being impacted by external force, and its impact resistance is super strong, which has exceeded the national standard by 5.6 times.

In addition, it also has excellent performance in stress testing.