General description Made of durable and scratch-resistant ABS plastic, the Way Cat Flap is designed for small animals like cats and small dogs. This cat flap features four locking modes: open, closed, only in, or only out, allowing you to control your pet's movements while giving them the freedom to come and go as they please. It is suitable for installation in various surfaces including windows, glass doors, brick walls, PVC, uPVC, and metal doors, making it a versatile choice for any home. Technical specifications Material: ABS Size M: Outer Size: Height: 20CM, Width: 19CM, Thickness: 5.5CM; Inner Size: Height: 16CM, Width: 15.7CM; Weight: 0.34 kg; Suggested Weight: Weight ≦ 14KG, Height ≦ 40cm Size L: Outer Size: Height: 25CM, Width: 23.5CM, Thickness: 5.5CM; Inner Size: Height: 19CM, Width: 18CM; Weight: 0.52 kg; Suggested Weight: Weight ≦ 16KG, Waist circumference ≦ 60cm Locking Positions: 1) Entrance (entrance possible) 2) Exit (exit possible) 3) Fully Open (entrance and exit