These are blank materials for Fender nuts. They have been soaking in oil for nearly a year. Comes in a set of 4, made from unbleached cow bone. The size is approximately 80 x 10 x 3 mm. The nut for size confirmation is not included. Only the 4 packed pieces are the product. Given the size, I believe they can also be used for acoustic guitar or classical guitar bridges. I rarely use materials for Fender-type guitars or acoustic guitars myself, so please make good use of them. They will be shipped in multiple zip-lock bags to prevent oil leakage.