IBI’s PR-40 and PR-42 have four fluorescent orange angled shelves that ensure your pipettes remain safely in place, while adding a touch of color to your lab. The PR-40 and PR-42’s notched shelves also offer easy access to many different pipette lengths. Depending on the size of the pipette, the four compartments of the PR-40 offer increased storage volume of 6 - 20% over competitive pipette racks, and the PR-42 offers approximately double the storage volume over competitive racks . A bottom miscellaneous storage compartment increases the rack’s stability, and the skid proof feet keep the rack from sliding on your bench top.