Compound String B50 38in 16st Blk MCS--SEL Go to amazon.com Related posts Top 11 recommendation b50 bow string 2022 FeatureReplacement B-50 Dacron BowstringFits Many Older Model Compound Bows From The 1980's & early 90'sPremium Brownell B-50 DacronStretched length: 38". Relaxed length: 36" DescriptionCompound bow string constructed of B50 material. Features served end loops and mono center serving. .