Probe-Clip press-seal incubation chambers 

Probe-Clips are made of optically clear hydrophobic plastic bonded to a durable silicone gasket. A sealed chamber is formed when a Probe-Clip and a microscope slide are pressed together. Excellent for probe incubation, cytochemistry, blocking, etc. No evaporation, even for incubations of several days' duration. Cross-contamination and spills are eliminated.