The ESS CrossBlade LPL-5 Laser Protection Kits are designed to block visible green lasers and laser pointers from damaging the user*s eyes. ESS LPL-5 lenses provide ballistic protection along with 2.5 Optical Density (OD) that blocks 99.7 percent of 532nm wavelengths from green lasers.?The lens tint*s 48 percent VLT allows for optimum protection and operation versatility in a variety of environments.