We live in a place in Canada where weather changes very quickly and winds come up in strong gusts as weather changes. Our outside wooden deck table is 52 inches diameter. We needed to have all 8 weights (two boxes) on the table cloth even though it is on a deck with some shelter on two sides. The weights work very well indeed and the tablecloth can be left all day. Historically we have had to take in our table cloth after using. Now we can leave it out all day. The clips are very classy and remind us of our time living in France, Italy and Switzerland.
These charming weights really works. I initially purchased 2 sets, used them on a very windy afternoon backyard party & the tablecloths stayed put so I purchased 4 more sets!