Product DescriptionSize: about 7mm / Length: 70mm or so Material: PP (new material) Features: autoclavable at 121 degrees Convenient, clean, beautiful, high-efficiency, single-use Usage: can be used for laboratory analysisPackage included:50pcs Pipette tips.(as picture show) Payment Options We accept paypal as a method of payment.Payment is required at the time of purchase.Please make payment within 48-hours after the order is placed, or the items will be relisted.