b'Model External InternalWeightVolumeShelvesSize 1 550 x 550 x 530 435 x 435 x 335 297kg 64L 1HIGH SECURITY SAFESSize 2 670 x 550 x 530 555 x 435 x 335 348kg 81L 1 Size 3 840 x 550 x 530 725 x 435 x 335 420kg 106L 1Size 4 1010 x 550 x 530 895 x 435 x 335 484kg 131L 2Size 5 1510 x 680 x 560 1425 x 545 x 355 905kg 276L 3Add 55mm to external depth for handleSize 1Locking Options: Size 3Any lock alterations must conform to EN1300 Class B. See page 7825'