Shimano Jewel 2021 Spin Fishing Rod A larger carbon content has been added to the T45 blank structure of the Jewel to help with speedier blank recovery and responsiveness. Additionally, high-quality Fuji Alconite K guides have been used to provide fishermen with exceptional casting performance and value. This line has a fantastic new black and white cosmetic that goes nicely with a variety of Shimano reels. There is a Jewel to fit every vacation, fishing style, and species!