Review on CheckUp P-Pole: Collect Your Dog's Urine at Home - Telescopic Pole, Cups, Pipettes & Vials for Convenient Testing by Ben Karlen

Not much, but if you run out of collection cups, you can use a clean (and dry) Greek yogurt container as a last resort. And if you run out of shipping droppers/vials, you can use clean (very, very clean) and dry prescription bottles and seal them with a cap and clear tape around the bottle. That's how I've done it in the past with no problems. You can also buy sterile urine sample containers at the pharmacy. They're usually stocked behind the counter, so just ask your pharmacist. I think I paid 60 cents for one a few years ago. Even when fully extended, the extension is stable (ie does not wobble). I found it very easy to use but you should have a plan in advance. I mean you need to have some idea of where (or if you can) put the pole and drip tray after filling. It would be next to impossible for me to keep my feral dogs on a leash and a mug full of poop. So I planned on carefully setting the perch on the yard floor with a full bowl and not tinkering with it until my dog was back inside. If you decide to do the same, remember that the bowl is lower than the handle. So if you put the entire device on the floor, be careful not to spill it. It didn't cause any performance issues. It's a lot easier than trying to shove an empty plastic deli container under my dog in the middle of a stream. I'm happy to see it's made in the USA and highly recommend it. I hope my humble opinion helps you in some way. And that I didn't ruin your affinity for Greek yogurt. Thank you for reading.