CELLTREAT Scientific Products 39cm Cell Scrapers. Cell Scrapers are designed to gently harvest cells from tissue culture flasks, dishes, or bottles. Soft, pliable blade won't damage cells or scratch surfaces. Scraper blade is positioned parallel to the handle for windshield wiper like scraping. Handle length 39cm and blade length 30mm. RNase/DNase free and non-pyrogenic. Every case is printed with the lot number for quality traceability. Packaged sterile, individually wrapped, 100/case.