J-BRAID x4 perfect for abrasion resistance and ease of use for knot tying and line management. The 4 Carrier lends itself to be a bit thinner diameter great for additional line on your reel when necessary. x4 is made with the highest quality Dyneema material available on today’s market with Daiwa’s proven hi standard of manufacturing makes J-Braid one of the best on the market today.