A small super light weight 3D printed wheel chock with your aircraft registration on it. Not only is is light but also very strong. It comes in different colors - just select your favorite when you order. Note that ONE PAIR means two printed parts connected with ONE piece of nylon rope. ONE PAIR is for one wheel only. It is advisable to order two pairs. 

There are two sizes to choose from namely:

Small: 110L X 40W X20H (mm) Ideal for the two seat RVs.

Large: 150L X 50W X30H (mm) Ideal for the RV10, RV14.