【GolfSim DIY Screen Series】Metal grommets surround the entire material designed to ensure the material is equally tensioned on all sides and perfect for custom frame golf /sport simulation enclosures.8K, 4K Ultra HD, Active 3D, HDR Ready 【ImpactWhite 1145 golf impact front projection material】0.8 Gain, 180 degree wide viewing angle, a multi-layer 4.5mm warp knitted fabric formulated for maximum strength to withstand golf ball speed up to 200mph impact while providing the highest image quality, and longevity, ISF Certified 【Best Quality】 Allows a clear and sharp presentation without loss of image fidelity. Metal grommets surround entire material which allows material to be equally tensioned on all sides.4.5 mm warp knitted fabric is comprised of three layers for maximum performance in image quality, shock absorption, and endurance 【Features & Includes】Internal Spacer suppresses and dampens the noise generated when golf ball impacts screen. Material withstands up to 1062 continuous golf ball strikes on the same spot at 160mph. The average impact rebound is less then 1.6' 【US Based Company Warranty】 2-Year/3-Year ENR-G Manufacturer's Warranty by Elite Screens if purchased NEW, an ISO9001 manufacturer since 2004 and Lifetime Tech Support by Email or Phone Call by Elite Screens' Professional Service Team