This Accmor cup holder is one of those simple accessories that you never knew you needed until you have it! The clamp opens up to 4 inches, so it fits on pretty much any stroller handlebar, wheelchair armrest, bike frame, walker, or scooter. The 360-degree rotation is genius - you can position it at any angle that works best for you. The serrated grip design keeps it securely in place without sliding around, even on bumpy terrain. It holds bottles up to 3.4 inches in diameter, which covers most water bottles, baby bottles, coffee cups, and drink containers. Installation takes seconds - no tools required, just clamp it on and you're good to go. I've used mine on our Uppababy stroller, my husband's bike, and even my mom's walker - it works perfectly on all of them. The black finish looks clean and doesn't stand out too much. The plastic is durable but not too heavy, and it's held up well through all kinds of weather. Seriously, if you're tired of balancing drinks between your legs or trying to hold everything while pushing a stroller, this simple cup holder is an absolute lifesaver. It's one of those cheap accessories that makes daily life so much easier!