CELLTREAT® 1000µL Low Retention Pipette Tips, Racked, Sterile, 960/Case A perfected balance between raw materials and efficient manufacturing process results in superior low retention pipette tips are universal fit and compatible with major pipettes pipette tips have smooth, hydrophobic surfaces to ensure accurate pipetting molded volume reference markings offer a quick double check opportunity 96 tips per rack, case quantity of 960 pipette tip racks hinged lids are designed for easy one-handed opening, making it easier to access repeatedly lids have a stacking feature for added stability and a secure locking tab interior support ribs prevent rack from warping.