Ohhhhhh, British Columbian and ex professional here on this one.

Personal “bulk” sales are usually some in 1/8ths (3.5 grams) or more but in stores, the first page of their lil booklet is usually half or full gram pre rolled joints.

Admittedly, for what it’s worth, first time I saw this meme in the wild was at a pot shop while buying a pre rolled gram.