1/4";" UV-stabilized black soft nylon mesh, prevents all but the smallest leaves and debris from entering your pond. Made of the same soft durable mesh as our Deluxe Telescopic Net , this net will last for many seasons. Strong, reinforced nylon edging and metal grommets for stakes and poles. Aluminum tent stakes included. All sizes (except 6' x 8.5') include aluminum poles with a smooth resin base for vertical support of the netting. Extra Poles available.