The Fishing Rod Repair Ceramic Guide Ring Replacement Kit includes 14 sizes of black ceramic guide rings made of stainless steel. The kit is designed for rod building and repair, with a maximum line diameter of 2mm. The guide rings are sold in a branded unit, with a weight of 60g and originating from the United States. This product is essential for maintaining and improving the performance of fishing rods, ensuring a smooth and precise cast every time.