
United Scientific® Plastic Well Slides, Sheet Of 10 Slides by United Scientific is a set of 10 reusable clear PVC slides, each 3" x 1" with a single well about 16 mm across and 2 mm to 3 mm deep. The well holds a drop of liquid so live specimens such as protozoa can be watched without the sample running off. Suited to classroom biology, field studies and student microscopy.