pet stroller for small dogs-Petsafe HPA11-10987 Extreme Weather Pet Door, Small

Highlights:

• Door Size: Small
• Pet Size: Up to 15 pounds
• Flap Opening: 5-1/8" x 8-1/4"
• Frame Dimensions: 7-1/2" x 11"
• Cut Out: 6-3/8" x 10-1/8"
• aximum energy efficiency is 3.5 times higher than our single-flap pet doors
• 3-flap system offers protection from the elements
• Paintable plastic frame
• Fits doors 1 5/8" - 2-1/4" thick
• Easy do-it-yourself installation
• Snap-on closing panel included; additional closing panel (sold separately) can be used for added insulation