Gas rise Yacht Table Base, 3/8" thick anodized aluminum plate with 3.5" stanchion tube, twist lock T-Handle (40 lb. Gas Spring) Provides adjustable height in salon/cabin areas Self-standing 19" (48cm) square base, 3/8" thick with 9" x 13" (23x33cm) table top support, 1/4" thick Polished and Anodized finish to resist saltwater corrosion Patent Pending Ultra smooth gas powered operation adjustable 20" - 29" (51 - 74cm) 40 lb. gas spring