HybriSlip hybridization covers are nuclease free, ready to use and designed specifically for in situ hybridization. These hydrophobic coverslips do not require lengthy preparation or blocking procedures to prevent probe trapping or binding. HybriSlip covers are heat resistant and do not curl, even at high temperatures. They are ideal for denaturation steps or in situ PCR incubations.[The PCR process is covered by patents owned by Hoffmann-LaRoche, Inc. Purchase of these products does not convey a license under these patents.]