Comparison : Item # 0002A-111R, NaCl Polished Rectangle- 39.5mmx39.5mmx6.5mm
Item # 0002A-111H, NaCl Polished Hexagon- 39.5mmx39.5mmx6.5mm
Item # 0002A-112R, NaCl Polished Rectangle- 39.5mmx39.5mmx6.5mm, drilled
Item # 0002A-112H, NaCl Polished Hexagon- 39.5mmx39.5mmx6.5mm, drilled
Item # 0002C-86R, KBr Polished Rectangle- 39.5mmx39.5mmx6.5mm