Bresser Slides and cover plates 50/100. These are normally sections of herbal or animal parts. The cover plate helps to press the preparation on the slide and safes it. Slides with cavity are very useful for the analyses of liquids. Specifications for Bresser Slides and cover plates: Manufacturer: Bresser Condition: New Package Contents: Bresser Slides and cover plates Bresser 59-16000: Slides and cover plates 50/100