What does DIY three-in-one lv mean?

DIY three-in-one lv is to assemble LV bags by yourself. DIY is the abbreviation of "DoItYourself", which means making it yourself. LV three-in-one is a luxury starter bag in the eyes of many people, which is cheap and fashionable. Buying one is equivalent to buying three, which is very cost-effective. The counters are often out of stock.