DWK Life Sciences (Kimble) Highest Quality NMR Tube, 7" L

NMR Tube, 5 mm Size, 7" L, 4.20 ID x 4.97 mm OD, Borosilicate Glass, 0.375 mm Wall Thickness, 13 µ Camber (TIR), 25 µ Concentricity (TIR), 527-PP-7 Wilmad Equivalent, Highest Quality, With Polyethylene Cap, 400 MHz Field Strength