Fantastic product! I cant believe I havent seen these at a Lowes or a Home Depot! I use one for my suppliments, sure beats messing with the lid, hoping it got it on tight to keep rodents out. I also use one on my empty Dynamite suppliment bucket for all my bathing products. Super easy to use, fits the bucket and makes it easy to open and close. It wont fit every bucket though. Just the ones with openings the same size as on a 5 gallon bucket. Totally worth the price, and I bought some for my dad who is in construction! He loves them!