Triple locking system with easy one-handed operation. Self closing with hold-open feature. Adjusts to fit openings 28"" - 38.5"" wide with two extensions included, and is 29"" high. Please note: ""When you unpack this gate you will notice that it is not square. This is normal and the gate is not damaged. It is manufactured at a pre-set angle so when it is installed properly in the opening, it will maintain the correct amount of tension and prevent it from being pushed out of the opening under normal use. Please read and follow the instruction manual carefully.