The new 10ul XL AvantGuard Barrier Pipette Tips from Light Labs offer several unique designs that set the tips apart from most other 10ul pipette tips. Our 10ul XL Barrier Tips have a soft fit collar which allows for easy on and easy off of all pipettors. The tip collar is made with a thin-walled surface, which also increases the accuracy of the pipetting because a better vaccuum is formed. The tip features reference marks at 2ul, 5ul, and 10ul. All AvantGuard Barrier Tips are low binding, meaning that they retain far less DNA, RNA, and Protein than conventional pipette tips. Light Labs AvantGuard Barrier Pipette tips are also Sterile and RNase/DNase/Pyrogen Free. The tips are packaged in packs of 960.