This easy-to-use positive displacement pipettor/dispenser allows rapid, precise and accurate dispensing, up to 48 times in succession, without refilling.EZ Syringe Tips fit most manufacturers' repeating pipettes, except Eppendorf® models. EZ-Tips are manufactured from virgin polypropylene and high-density polyethylene without lubricants or chemical additives to prevent reagent contamination. Manufactured from High Quality Materials: EZ Syringe Tips are made entirely from high-quality virgin polyethylene and polypropylene without lubricants or other chemical additives. Available in non-sterile and sterile.