The Homework DOPE Sticker is an analog way of recording projectile drop at various ranges in increments of 50. Sold in a pack of 6, the stickers are 1.5" in diameter and cover a range of 200 to 850 (yards or meters). A larger version (1.7" diameter) covering ranges from 300-1250 is available separately. Stickers are printed in the USA with a high-quality industrial grade adhesive on a mat finish. Applied to a scope cap of appropriate size, this is a helpful aid for shooting at various distances one may encounter target shooting or hunting. We recommend recording data with a fine point sharpie.