Review on 🐹 Baihui Hamster Cage Connection Board Metro Cage Replacement Tube Connector - Durable and Flexible Accessories for Small Pets by Ana Nguyen

Used for both Ferplast Favola and 10 gallon Petco cage top. Perfect for Ferplast rods but a bit awkward for a Petco topper. This still fits but can be a bit tricky depending on the brand of cage as they are all different sizes. Fits perfectly with Kaytee tubes. Came with mounting rings. Very happy with the purchase. However, there are two random sticky pieces that I had to cut off to fit my cage. I don't know what their purpose is, but it's not hard to cut them off.