Petsafe - Staywell Pet Door

The Original 2 Way Pet Door features a barrier locking system and a clear, hard, weather resistant flap. The seal on the flap is magnetic. It can be installed in wooden doors and walls. 
SIZES:

SMALL: For dogs up to 7kg. Shoulder width 147mm.

LARGE: For dogs up to 45kg. Shoulder width 290mm. 

DIMENSIONS OF DOOR:

SMALL: Overall size: 236mmX198mm. Cutout size: 185mmX158mm

LARGE: Overall size: 468mmX391mm. Cutout size: 370X314mm.