Tube racks with 4 coloured modules (blue, green, pink, yellow). Each module can be rotated independently, clicked into place and loaded with tubes. Rack maintains its orientation until it is twisted again. Several sizes of test tubes can be used at the same time. Fully assembled, autoclavable. For large tubes: - 8 x 50 ml. - 24 x 15 ml. - 32 x 20 mm. - 40 x 13 mm. For microtubes: - 24 x 15 ml. - 36 x 1.5 / 2 ml. - 48 x 0.5 ml. - 128 x 0.2 ml. Tube racks with 4 coloured modules (blue, green, pink, yellow). Each module can be rotated independently, clicked into place and loaded with tubes. Rack maintains its orientation until it is twisted again. Several sizes of test tubes can be used at the same time. Fully assembled, autoclavable. For large tubes: - 8 x 50 ml. - 24 x 15 ml. - 32 x 20 mm. - 40 x 13 mm. For microtubes: - 24 x 15 ml. - 36 x 1.5 / 2 ml. - 48 x 0.5 ml. - 128 x 0.2 ml.