Conviently bundled in sub-packs of 100. Worked well in Lexmark x6650. I did ruffle the cards before dropping a batch into the sheet feader. (Like fanning paper before its loaded.) 4x6 is nearly the largest card USPS will accept at 28 cent rate. Wish they were a bit thicker (heavier).
I create my own recipe cards and stationary for personal use and sale. These cards a bit thin for this use but you do not offer any thicker index cards.
My Epson printer will not accept 3x5 index cards but will accept 4x6 - so I print on the 4x6 and triom them dow to 3.5x5 after printing on the original card - a pain but it works for me. Solving a problem around the inabillities of my printer. Next time I will check what size paper my printer will work on.
I wish I could have had a choice! The un-ruled 4 x 6 cards only came in BULK 500. The ruled cards where available in an assortment of package sizes. I only needed less than 100 cards but had to over buy to meet my needs. Now I have enough un-ruled 4X6 cards for 3 life times!!