Heavy duty #42 netting, 1-3/4" x 1-3/4" mesh. Suitable for high impact. High density polyethylene, knotted mesh. Hung square. Easier to see through, easier to install. Rope border on two sides, hand stitched throughout. Black dye and UV inhibitors are internal. No dyes or chemicals to wash off or harm your pets. Resists fading and lasts longer.