10ul Long Reach Barrier Tip, Sterile Low Binding, 96/rack, 10racks/pack, 5packs/case. These filter pipet tips are precision molded under the industry"s strictest manufacturing guidelines to assure flawless fit and consistent accuracy. Made of 100% premium grade virgin polypropylene, no additives or colorants are used that may interfere with the integrity of your samples. These filter tips feature a unique low binding surface technology for increased precision and accuracy over competitors" tips. Each tip is individually sleeved in its own cell (featured with the 10, 20, 100, and 200ul tips) to keep pipet tips aligned for multichannel pipetting.