Product name: Guitar Neck ShimsProduct size: 0.25-degree tapers from 0.030" to 0.019" (0.76mm to .048mm)0.5-degree tapers from 0.028" to 0.008" (0.71mm to .020mm)1-degree tapers from 0.060" to 0.010" (1.52mm to .025mm)Product color: As shown in the figureProduct material: Canadian Mapleproduct features:1. Used to change the angle of a bolt-on guitar neck2. Made of solid maple to match the guitar neck3. Better than the typical homemade "guitar pick" neck joint shims, which create an unwanted gap, these tapered shims cover the entire heel of the neck4. Keep these on hand for a quick turnaround on this common repair5. Set includes 3 hard maple shims in the following tapers: 0.25-degree taper, 0.5-degree taper and 1-degree taper: MusporThis set includes 3 hard maple shims, each at a different taper for changing the pitch of any bolt-on neck:0.25-degree shim offers the most versatility stacking them will let you really dial in the neck angle you're after.0.5-degree taper is the one you'll reach for most often it works great on Fender and many other solidbody guitars.1-degree taper for guitars with a Tune-o-matic bridge or Floyd Rose.Dimensions: 2-3/16" x 3" (55.56mm x 76.12mm)Precautions:1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images.2. If you feel difficult to choose the size, you can feel free to contact mewe will give you some suggestion, but it is for you reference only.Shipment includes:3 pc Guitar Neck Shims