50 * 50mm Borosilicate glass (pyrex) Back Catalog number: 8644AB-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended A333-100 PTFE Scoop Price on request 8785H-75 Scraper box of 100 Price on request 8700S-11 200mm Sieve. 180micron Price on request