I took a card out of a booklet I got at the doctors office and it was for 1 pack of Humalog Pens FREE. You do need to bring a prescriptions from the doc with you but you get them for free. You are allowed 2 offers in 1 year I believe it said. You can also go to KWIKPEN.COM, fill out very small survey, and print the free coupon and bring it to a pharmacy. Its for Humalog (any kind). Humalog® KwikPen™, Humalog® Mix75/25™ KwikPen™ or Humalog® Mix50/50™ KwikPen. I got my pack today and the slip said without insurance it would be $188.00. Nice savings!