Now we can offer customers high quality compatible. RisoGraph master in jumbo rolls and master rolls. Specifications: 1) Model: GR-B4 a) Dimensions (W x L): 270mm x 100m b) Inside diameter: 40.5mm c) For Use in RisoGrpah: GR1700, GR1710, GR1750, GR2000, GR2700, GR2710, GR2750 2) Model: GR-A4 a) Dimensions (W x L): 227mm x 100m b) Inside diameter: 40.5mm 3) Model: GR-A3 a) Dimensions (W x L): 320mm x 100m b) Inside diameter: 40.5mm c) For Use in RisoGraph: GR3710, GR3750, GR3773, GR3790 Inner packing: 2pcs/box Box dimensions (L x W x H): 205 x 105 x 293mm (B4) 205 x 105 x 253mm (A4) 205 x 105 x 333mm (A3) Outer packing: 5boxes/ctn Carton dimensions (L x W x H): 545 x 210 x 300mm (B4) 545 x 210 x 260mm (A4) 545 x 210 x 340mm (A3)