The Douglas® USA manufactured, TN-45 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 double thick headband is constructed of 48 oz polyester. Vinyl bottom tape and side pockets of headbands are polyester based and wont 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. Tennis 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.