These are tubes for adjusting the height of single-coil pickups, such as those found on Stratocasters. Made from relatively durable silicone tubing, as genuine Fender parts tend to deteriorate over time. Approximately 10mm in height, with 6 pieces included. *Please note that these are handmade, so there may be slight size variations. I made these for repairing my own guitar, but I have some extra materials, so I'm offering them to anyone who needs them. They will be shipped via mini-letter.