Kettler Match 5.0 Outdoor Table Tennis Table with 2-Player Halo Racquet Set (Green) Absolutely weatherproof sealed aluminum composite tournament top with proprietary ALU-TEC Climate-Control underside that controls expansion and contraction due to weather changes Certified true tournament bounce for unmatched quality and performance All outer edges are protected & supported by a 1 aluminum apron. Apron design cradles table top to resist warping Patented Safety-Fold with Dual Lock Safety to prevent unintended opening or closing of table True play-back feature for warm-up or solo play has no wide gap for ball to drop in