Small Door With Adjustable Height：The tall pet gate can be adjusted by rotating the button to adjust the height of the small door to control the passage of pets of different sizes to achieve the effect of separating pets. And the width of the samll door is 8.54 inchs. The wide tall dog gate with cat door is perfect for families with children and multiple pets 1.37 Inches Ultra Narrow Spacing：The space between the tubes of tall pet gate with cat door is 1.37", so cats or other small pets cannot be squeezed through the spacing. And the 40.55" tall baby gate has a wide walk through opening --23.4" for the stroller to pass through 40.55" Durable and Safety Tall Pet Gate：The height of our extra tall and extra wide dog gate is 40.55 inches, so it is a suitable choice as a dog gate indoor, which can effectively restrict the entry and exit of dogs. The extra tall and wide baby gate is made of sleek thick steel, very hard and resistant to deformation and can withstand the impact of pets, make a safe extra wide dog cat pet proof gate Double Lock and Automatically Close： This tall wide dog gate cat door is designed with a double locking system of handle and bottom. It's almost impossible for babies to open, but for adults it's easy - just press the button and push back, then lift the extra wide tall pet gate. The tall pet gate for dogs indoor can be opened in both directions. When the opening angle of wide dog gate for doorway ≥90°, the door can remain open, and when it is ＜ 90°, the door will automatically close Different widths match different extensions：Different sizes of the extra tall pet gate for doorway are matched with different extensions, please measure your opening size correctly before purchasing. Additional gate extensions allow you to extend the width of tall baby gate for dogs with door for other spaces in the home, suitable living room, kitchen, doorways, hallways and stairs. Fits small or wide openings, from 30.12 inches to 81.30inches Product Description： 40.55 Inches Tall 1.37 Ultra-narrow Spacing safety cat pet dog gate with small door for families with children and multiple pets. With 4 pressured adjustment bolts and different extension combinations extend from 30.12inches to 81.30inches for living room, kitchen, doorways, hallways and stairs. Single-hand easy walk-through no tools required install for baby/dogs/cats.            Adding security for your baby or pet! Product Feature: 40.55 inches extra tall. 1.37 inches ultra-narrow spacing. Small door with adjustable height. Thickened hard steel pipe material. Double locking system. No drilling, easy install. ＜90°, Automatic close；≥90°, stay opening. Open from both 2 sides, never confuse and easy use. Attention: 1. Do not cut the tie that holds the door to the child gate before installing（important）. 2. There is a gap before you install it,this is not defective or bent.      If you find that after you tight the bolts there is still a big gap ,pls continue tight the up two bolts until shorten the gap. 3. Leave a distance for the gap,normally you need to leave about 0.4'' for the gap,otherwise too tight so you can not open the gate 4. If you can not open the gate,pls loose the up two bolts. 5. This product will not necessarily prevent all accidents, please never leave child unattended.