Material: ABS (smooth surface, very strong); Size: 23CM * 25CM * 5.5CM Multi-mode: Four modes to adjust, Mode1: Red button on the right. Blue button on the left, (access + exit) allows. Mode2: Red button on the left. Blue button on the left, (access + exit) prohibits. Mode3: Red button on the left. Blue button on the right, access allows + exit prohibits. Mode4: Red button on the right. Blue button on the right, no access + exit allowed. Wide application: Suitable for most cats, and doors With lock: With lock, when you do not use, you can lock it, safety to use Good thermal insulation: No air passing through after closing, good thermal insulation 4-way locking: only in, locked, only out, unlocked This door is suitable for most cats and small animals No more jumping on the door knob, no more scratching the door and barking to say she wants to go out! The locked door protects your home from stray dogs or cats when you are not at home