Here is a simple and efective drop in system if you like a runoff area. They stay put and are soft on the cars. They only took a few minutes to make and cost very little.
All you need is..
1) WallMart Yoga Mat. The thin one for $ 9.88 .One mat will make about 14 sections.
2) Interlocking Floor Mat. One floor mat will make 20 guardrails.
3) Oatey all purpose cement from Lowes or Home Depot. (The red can)
4) Utility Knife
5) Straight Edge
