Includes flexible flap with magnetic closure. Available in white finish.Overall size: 502.6 mm x 329.1 mm (19 1316″ x 12 1516″)Cut out size: 451 mm x 277 mm (17 34″ x 10 7/8″)Maximum pet shoulder width: 260 mm (10 1/8″)Maximum pet weight: 45 kg (100 lbs)