labora-system frames fitting into suspension 27301427 8 x 1.6-5,0 ml (PP) for blood collection tubes 13 x 75 mm or8 x 2.6-2.9 ml (PP) for blood collection tubes 13 x 65 mm or8 x 4,0-7,0 ml (PP) for blood collection tubes* 13,0 x 100 mm or8 x 4.9 ml (PP) for blood collection tubes* 13,0 x 90 mm*When using these tubes, suspension 27301427 cannot be closed with lid 27301421