Review on 🔒 Sulythw RV Wheel Chock Stabilizer Scissor - Keep Your Travel Trailer Secure with Tire X Chocks - 2 Sets! by Shane Mack

They're clearly saying they're going to go from 1 3/8 to 12, but as you can see they're not even close. 2 inches is just enough to hit both tire treads on my fifth wheel where 1 3/8 (more than half an inch) would fit with no problem. Seems solid, cannot confirm durability or performance due to incorrect sizing making them unusable in my application. Will return.