Very sturdy materials, which was a pleasant surprise. Used to foam cannons with less thick walls. Attachment/couple also appears sturdy and well made. My only negative remark is that the canister size is a little small, however, considering what we usually use in foam cannons is a concentrate, that should not be an issue - so maybe that is maybe more of a neutral observation than a negative. I can see it being an issue if you need to use a large amount of additive for a larger job, leading you to have to refill more frequently. Seems to be a good value for the price, overall.