Material: CR39

Specific Gravity: 1.32

Diameter: 55/60/65/70mm

Abbe Value: 58

SPH Power range: -0.00 ～ -6.00、+0.25～+8.00

CYL Power range: -0.00 ～ -4.00

Coating: UC/HC/HMC(AR)/SHMC

Coating Color: Green/Blue/Gold/Purple