container

With the cart scare going on, I decided to play it safe and switch to a terp pen for my out of the house use. However, I don’t want to carry multiple containers of different concentrates with me. I was going to buy a Puffco Prism and be done with it, but they’re sold out at PIU and Puffco, and...

what is a good grinder that fits in your pocket so it makes carrying container also? Do you care having only two-layer or we need the multiple layer, therefore no way its portable.