High quality glass Size: 75 x 26mm +/-1.5mm Single concavity with inside dimensions of 15 mm dia x 0.6mm deep, and 15µL capacity Pack of 10 These Microscope slides are manufactured from the best selected glass sheets, flat glass for microscope use with ground polished edges. Single concavity with inside dimensions of 15 mm dia x 0.6mm deep, and 15µL capacity. Each slide has size 75 x 26mm, thickness of 1.0 - 1.2 mm. Pack of 10.