BB20N (S/RD, S/BL, S/GR, S/PK, S/G) A/B/C/D
BB20 A 140 mm (H) x 90 mm (W)
BB20 B 125 mm (H) x 80 mm (W)
BB20 C 110 mm (H) x 75 mm (W)
BB20 D 53 mm (H) x 55 mm (W)