This shims kit is specially designed for handlebar bag mounts. It includes 2 units with a thickness of about 5.34mm and 2 units with a thickness of about 3.31mm. The handlebar section where you mount these shims should be round, without any tapers or flat areas. Also, don't use tape as it may cause the shims to slide or twist around the tube.

Using this shims kit is easy. First, make sure the handlebar section is round without any tapers or flat areas. Then, just place the shims on the appropriate parts of the handlebar for the bag mount. There are 2 units of about 5.34mm thickness and 2 units of about 3.31mm thickness, so you can choose the right ones according to your needs. Remember, don't use tape when installing the shims, or they might slide or twist around the tube. To maintain the shims, keep them clean and dry. If they get dirty, you can use a mild cleaner and a soft cloth to wipe them. This will help keep them in good condition for a long time.