I really use these index cards everyday! They are lined on one side & blank on the reverse side. They are a sturdy card and they’re good reminders calculations and anything! I use these card frequently and they’re excellent for speeches! They’re also very inexpensive. I recommend these card!
A little too thin. You use to have better quality set of index cards. Also no use for the multiple color cards in rainbow style. What I miss are Yellow 3x5 Index Cards to differentiate from the "White" for more important notations. The Rainbow package over complicates the use of colors.