13.98 ± 0.03 mm 6 MHz Plano-Convex Gold (Cr / Au)
13.98 ± 0.03 mm 6 MHz Plano-Convex EverLife Gold (Cr / Au)
12.37 ± 0.03 mm 5 MHz Plano-Convex EverLife Gold (Cr / Au)
12.37 ± 0.03 mm 5 MHz Plano-Convex Gold (Cr / Au)
