This Yakumo string features a string path adjustment function achieved by making one side of the string loop thicker. By placing the thicker side on the left side of the nock, you can adjust the string path towards the "iri-moku" (entering wood) direction. 【Important Notes】 The thinner side of the string loop (see the second image) is not doubled, so the original string is more likely to be exposed. However, the part that touches the corner of the nock is designed to be unexposed, so it will not lead to breakage and can be used as is. Recommended bow weight: ~20kg String dimensions are for 【Ren-shin, Jiki-shin, Koku-shin】 bows. Use a center serving made by wrapping hemp or synthetic fiber over the base. Keep away from fire, sharp objects, and "matenso" (a type of string wax). This product is a loop-type string. Adjust the height by twisting the string. Compared to other makers, this product is relatively low-priced because it is only available as a finished product and has not undergone maintenance. Basically, no returns or exchanges are accepted. Archery Equipment Kyudo Anonymous Delivery