4 PC Interchangeable Inner Tie Rod Tool Kit. Covers the widest range of tie rods featuring a new no-tools-necessary design due to the unique finger operated snap-ring Unique design allows user to change cages with no additional tools Covers the widest range of tie rods Sizes 3 Interchangeable Cages: 39mm-45mm, 34mm-39mm, 28mm-34mm rings