DT Systems Super-Pro Flutter 10" Launcher Dummies are unbalanced and produce a wobbled flight that better simulates a shot bird falling to the ground. The 10" length provides a more similar size to larger upland birds. Built from the highest quality 1000 denier nylon Cordura fabric. Specially coated, the fabric repels water, resists mold growth, greater durability, and has excellent scent holding qualities.