I have been running an area for children at an annual Art Fair for over 30 years and use these cards for heavy duty electric spin art machines. I used to buy the index cards at the stationary store but over the years they got flimsier and flimsier and would not bear the weight of the paint. I started having to use two cards for each spin art made – they would fly off the spinner and wreck the painting. It caused added frustration and expense having to double up. And then, a few years ago, my husband found these! They are FANTASTIC cards – very sturdy and dependable. The company is GREAT! Fast delivery and packed with great care. Being able to order 1000 at a time is not only a money saver but you just can’t beat the quality. They have many uses too – I have even used them as place cards – cut, folded and decorated and they stand up to anything! I also like to support small businesses whenever possible. This owner appreciates our business and sends a personalized note which is greatly appreciated in this day and age. I hope he never goes out of business!!!