The door itself does not contain mosquito nets, it is just a door frame, because it is to be installed on existing mosquito nets. In addition, nets that are too hard are not suitable for installation, because the opening the door will have too much resistance! Product size: size: door frame outside: 45 ,5×35×2cm, inner door frame: 40×30cm Product weight: small net weight: 0.5kg (including packing box 0 .62kg) Large net weight: 0.66kg (0.86kg with packing box) Installation is simple, and entry and exit of dogs and cats has become more convenient! Summer is coming, are you still bothered by mosquitoes when installing cat flaps? The new product can be installed on the pet door of the screen window, it can solve this problem for you! You only need a cutter and a ruler to complete the installation. Super simple, save time and effort! Installation steps: 1. The pet screen door is made up of two panels. First, separate the screen door into two pieces and install them at the lowest corner of