Amazon.com: Handy Caddy Sliding Kitchen Under Cabinet …

But for me, once I pull the tray with coffee maker out over the end of the counter, the weight of the pot will just send the tray and coffee maker to the floor. I’ve tried weighting the back of the trays but it did little to provide enough structure and having to weight the lower tray creates an obstacle for sliding the upper tray back.

https://www.amazon.com/Sliding-Kitchen-Cabinet-Appliance-Moving/dp/B003LQZKIC