The product is a 50-pack of natural cork rings designed for rod building, featuring a size of .5" deep. With a diameter of 1.25" or 1.5", these high-quality cork rings are perfect for creating custom rods for sport fishing. Made in Portugal, these cork rings are a great addition to any angler's toolkit for enhancing the performance of their fishing rods. 1.25" or 1.5" x 0.5" with 6mm bore