I bought these to string christmas lights in my kids rooms (indoor on smooth, clean painted wallls).   I followed instructions,  cleaned the wall, dried the area, held fir 30 seconds and within 5 minutes several clips had simply fallen off the walls.  Over the next few days even more fell off.  Two weeks later and not even half are still attached.  

Very dissapointed in this product.  Other command hooks and strip have held up amazingly well and I love the product.  But this one, totally fails.  Not sure what's different about the clear sticky tabs vs the white ones, but I will never again splurge for the clear ones that were more expensive.