I've used these on the iCare and iCare 2. They work so much better than the smaller pin hole coils that come with the each iCare. However, when using these on the iCare 2, the bottom does not seal due to the cut out going all the way to the bottom of the coil. This causes the loss of a lot of liquid (staining pockets, creating a mess overall). If eLeaf could come up with a solution to this, these would be PERFECT. I'm waiting for version 2 of these so I can give them the 5 stars they deserve. Gaslight is great! Keep up the good work and amazing customer service!