Pet Safe Wall Entry Pet Door Medium 8" X 11" SKU PZ10916 $109.99 Quantity discounts available QuantityPrice Quantity -+ Add to Cart Check Out Safely Details Features: Easy to install, do-it-yourself pet door for your wall.Telescoping tunnel to accommodate both 2 x 4 and 2 x 6 construction. Double flap co... DetailsBackDetailsFeatures:Easy to install, do-it-yourself pet door for your wall.Telescoping tunnel to accommodate both 2 x 4 and 2 x 6 construction.Double flap construction ensures excellent insulation factor.Durable aluminum frame.Size: Medium, for dogs up to 40 lbs.DimensionsLengthWidthPet Safe Wall Entry Pet Door Medium11 inches8 inches