Great for the price!  Would like more colour options but the grey is better than I thought and def best price I could find anywhere for anything similar, and they really work.  No need for carpet tape they stay in place and now my dog can finally go up the stairs (was terrified before).  If you have toddlers or someone with mobility issues, you might want carpet tape just for extra safety but for basic use you really just put them down and thats it.  Our kids and dog run up and down with no issues.