The sit I ordered from was "Field & Forest" ( Link Below). I also got my first few kids from Fungi Perfecti. They are the ones that do not supply home kits anymore, but on there she its a list of others that do. That is where I got this site from. And so far, they were very efficient with my order, the packaging ... No issues whatsoever.
https://www.fieldforest.net/category/indoor-grow-kits
Its a regular roll of toilet paper ( Paper still on). Just bring a pot of water up too boil, dunk it in until full absorbed, let it cool, place in bag, dump grains in, rubber band bag closed and let it sit. put in fridge 2 days, open bags, mist each day, harvest. Pretty much as simple as that.
A couple oof things.
1) the TP absorbs quite a bit of water, so may have to refill the pot a few times ( small kit is 7 rolls, large kit is 15 or something like that)
2) The TP kinda starts disintegrates a bit there is a window of when its saturated to when it falls apart.
3) somewhere on the site are videos that show the process. its like 1 1/2 minutes long.
4) I wouldn't use colored or scented TP.
Also, the first roll, my wife gave me was this huge, extra absorbent one. The thing swelled up so much, barely fit into the bags.
Not sure if the harvest pays for the price of the kit. But for me, its not only growing, but entertainment. So even if I dont break even, its still a fun way to pass time. Amazing how quick mushrooms grow.