Description: These sterile disposable tissue grinders are ideal for needle biopsy specimens or small amounts of tissue meant for microbiological analysis. Grinder is made of high quality borosilicate glass with etched bottom for greater abrasion. The tube is non-cracking polypropylene and the high temperature vinyl top covers the tube and protects from breakage. Each grinder is individually packaged in a sterile, easy-to-open pouch. Available in three sizes of tubes: 8mm, 13mm and 17mm. Sold in cases of twelve (12).