With work rack and cooling pack to 0°C. Excellent heat insulation, safe to touch (no direct contact with hot surfaces). Interchangeable thermoblocks for 24 x 0.5ml, 1.5ml or 2.0ml microtubes: Each supplied with a work rack and cooling pack for rapid cooling to 0°C (instead of an ice bath). Interchangeable thermoblock for microtitration plates of all well forms incl. deep well microplates; Adapter plate for 96 x 0.2ml PCR tubes for use with the microtitration plate block. Block with lid for headspace and other laboratory tubes with diameter 11mm to 12mm, height 30mm to 76mm. CombiBox, interchangeable thermoblock for universal temperature control of various sizes of tubes; can be attached easily, without locking.