The Douglas® USA manufactured, TN-40 meets the USTA requirements for official size (41’9″ Long x 3’6″ High). Net is constructed of 1-3/4″ square mesh, 3.5 mm braided solid core polyethylene. Material is weather resistant and unsurpassed for durability boasting a 325 lb break strength. The 2-Ply headband is constructed of 36 oz vinyl coated polyester (20 oz./sq.yd.). Vinyl bottom tape and side pockets of headbands are polyester based and won’t shrink, mildew or rot when exposed to the elements. All headbands have been lock-sewn with four rows of 32# white polyester thread. The side and bottom tapes are double lock-stitched with black polyester thread. Net includes 1/2″ Fiberglass side dowels and center strap. Center strap is made from heavy-duty 2″ polyester white web with nickel plated web slides and straps. 5 Year Warranty.