Slippery Course Flags (Yellow and Red Stripes), 24x30 inch are printed on 200D Nylon and double stitched. They have a 3/4" nylon sleeve, closed on top. Flags made from 1 ply 200 Denier Nylon are intended for both outdoor use and indoor use. Nylon is a heavy duty material, which is formulated to withstand the wear and tear your flag will sustain. Printed with UV protected inks, your AGAS Nylon flag will fly beautifully for seasons to come.