If you intend using the car off road (or even greenlaning) it is worth investing in a decent recovery strap, or rope, and shackles. However, you do need 'proper' recovery points on the car. Most standard towing eyes are only suitable for towing on a hard surface.
You can get untested commercial shackles or tested ones. IMHO you should always go for the tested ones. They are not much more expensive and you know exactly what you are buying.