When my pimple turns white i use this to poke a little opening before i use q-tips to press and extract the pimple. There perfect for my keto mojo.

The lancets are essentially painless. They work just fine in my mom's lancet pen. These needles are sturdy and universal for various brand injectors.

These are billed as universal, i suppose that word means different than i expect. The information about these products is not as succinct as they should be. Fits most devices is not helpful.

Not especially well made. Certainly not painless, as advertised. Head pops off when i use it. This product is junk.