These fluorescent arrow wraps are high visibility neon vinyl allow you to see and track the flight of the arrow better. The actual product is much brighter than the image in the listing shows. Available in 8 lengths: 3", 4", 5", 6", 7", 8", 9" or 10". Available in 5 widths: .85", 1", 1.125", 1.25", 1.4". Arrow Fit Chart: .85" - your smallest micro diameter arrows on the market. Your arrow better be small. 1" - fits most standard diameter carbon arrows from 400 spine GTs and 250 spine Carbon Express and smaller. 1.12" - fits the stiffer spine arrows 340 GT spine and up, but not your size 23 size arrows. 1.25" fits most of the 23 size carbon arrows around 23/64". 1.4" is for only the largest circumference arrows available on the market: your 27/64".