CATHOLE Cat Door Classic Model - Original Interior Cat Door, Installs Easily, ‎16 x 31 x 29 inches Features & details Model 1 - Highly Crafted Baltic-Birch Wood Cat Door Frames. Includes Removable Fused Bristle Brush that Grooms Your Cat - Improves Hygiene and Cleanliness of Your House! Separates Your Cat's Litter Box from Your Living Space - Pleasing to Both You and Your Cat! Quick and Easy "Do It Yourself" Installation - Takes Approximately 30 Minutes. 100% Made In USA.