I have been using Lynx Levelers for many years.... carry 'em on the TC bumper (see pics below)
- I use them a lot... almost every time I camp
- Very happy with their performace and ease of use
- They are plenty big, just the right height too
- It's hard to imagine "sliding off" of them (since other tires would also be sliding), but I have had them slide forward on smooth concrete when attempting to drive up them... easily remedied by engaging 4WD
- They have never collapsed and I've stacked 'me up pretty tall, even on soft terrain
- Worth every penny
- Yep, I'd buy 'em again
- Nothing wrong with home made blocks... But it would be hard to make something as light/easy/versatile/simple/cheap as the Lynx Levelers
- I
never level with my jacks! but occasionally I'll lower them just until they touch the ground to add stability
Cheers,
Mark

