We bought our grids + connectors from Amazon but the connectors were too small for this door frame, so if you buy this kit, buy @guineapigcagesstore connectors too! Other than that, the door is a brilliant invention and works great. Plus, it makes cleaning the cage much easier, especially under the platform/ramp.
This door was easy to add on and is a great addition to my piggy’s cage! Makes cleaning under loft easier!