Specifications Product name Nex-Acri Model N4-18B Optic material Hydrophobic soft acrylic Haptic material PMMA Diopter range 1.0 to 10.0 D (1.0 D increments) 10.0 to 27.0 D (0.5 D increments) 27.0 to 30.0 D (1.0 D increments) Features Long-term material stability Square edge to form sharp capsular bend Optimum unfolding speed