Genubi Industry 2 Pack Black Heavy Duty Extra Large Solid Rubber Wheel Chock with Portable Handle for Travel Trailer, Truck, Commercial Vehicle and RV, 9.5 Inches x 6 Inches x 7 Inches

Parking curb filled the purpose I ordered it for.w

They are pretty heavy. The weren’t the cheapest ones but i wanted a heavier weight block , so they wouldn’t slide as easy. They definitely do their job!

These are very sold and appear to be good quality for the price

Really heavy-duty, stay in place on any kind of surface (even ice), no-brainer to use, handle is super helpful for getting them back out and away from the tire. Suggest ordering them at least a month before you need to use them. They really smell (rubber) when they first arrive for about that long, even when left outdoors a lot. They come in a white bag that reduces the smell to minimal, but that's a little inconvenient when using them a lot on a road trip. However, well worth that initial inconvenience for the safety and piece of mind they afford.

I bought two (sold in pairs) and used one on each car bolted to the concrete. They stop you where you need to be, in my case with a minimum of loss at the rear and maximum space in front. We have a full sized SUV & a sports car and I was able to adjust for both. Had them a few years and they appear to be holding up well.