Pet Dog Cat Gates 4 Ways Wide Pet Door Gate Tall Retractable Folding Safety Gates Gateway Pet Barrier Indoors White Size: Large, Outer size : 23.5x25.2x5.5cm ( W x H X D)/ 9 x 9.8 x 2.1 inch; Inner size19 x 18cm ( H x W) / 7.48 x 7.08 inch Material: ABS , first class great quality plastic Therere four function of the dog door :Locked ; Open ; Only in ; Only out