They’re inexpensive, plastic 10 gallon buckets, or bins, from Walmart. I’ve been using them for several years for a variety of purposes. Initially, they saw the most use in packing for camping trips. One with miscellaneous kitchen items, like instant coffee, percolator, paper towels, washcloths, etc.. One with our Mountain House supplies for the trip. One larger one for things like our tent fans, camp axe, batteries, etc. Depending on how they’re packed, they can get heavy. Then again, I only need to carry them between the house and the car, then the car and the campsite. So far, we’ve always camped at a “modern” campground. Hmm, maybe I’ll work up an entry on setting up our camp.