Ebony, Bone, PBE and FMI guitar shim strips and shims for guitar nuts and saddles. We also sell the complete Guitar Saddle Shim Kit from the workshop of Bob Colosi. Here are Bob's own words : If your saddle sits too low in the bridge here is a handy-dandy little kit to give it a lift and set it up for a nice ride. - Using ebony shims, correctly attached to the bottom of the saddle is the most time-honored method of doing it right, and doing it permanently. - An instrument with a properly shimmed saddle will suffer NO tonal loss. - Anything less, and you're sacrificing tone and in some cases the integrity of the instrument. Click on "More Information" below for all the details of these products.