The wheel chock Model Number is stamped in the center floor plate of the unit. If the wheel chock is custom-built, the inside rail width of the chock is stamped instead of a model number.
If the stamp is not legible, measure the inside rail width per the picture below and compare it to the Size Chart.
![](https://cdn.shopify.com/s/files/1/0640/6275/0878/files/id-wheelchock-2_480x480.jpg?v=1718139192)
![](https://cdn.shopify.com/s/files/1/0640/6275/0878/files/id-wheelchock-3_480x480.jpg?v=1718139192)