Tips are manufactured from the finest raw materials using precise production techniques that provide consistent quality performance. Primary products are made from virgin polymers and contain no recycled, reprocessed, or altered plastics. Natural, Polypropylene Platinum Reload System Non-Sterile Standard Tips Volume Range: 50-1250ul Grad Lines: 200, 500, 1000ul Certified Human DNA Free Certified PCR Inhibitor Free Certified Pyrogen Free 96 Tips/Deck, 8 Decks/Pack, 4 Packs/Case