Whether it's for home or in my shops, I swear by these drain stoppers.Standard sized to fit most kitchen sinks. They are durable. Instead of the metal or plastic stoppers that come equipped with a rubber seal, this one being made of rubber does not come loose or fall apart with rugged use. In fact, the only time I've ever mangled one of these bad boys is getting it lodged upside down while the water is draining. This created the most dramatic suction, forcing me to pry the thing out with a pair of needle nose pliers. This is not a product complaint, it is a user error, I assure you not to let that quip deter you! The slight grade on the rubber makes them easy to grip in soapy water, and there is a thin wall of plastic on the inside making for easy extraction if it happens to get stuck upside down for you as well. They come individually sealed in plastic. I'd prefer if they were a little more eco-friendly with the packaging, though I understand the desire for uncontaminated and untampered product.All in all: I rest a little easier knowing I have a trusting brand for sink stoppers. It's a small thing that makes a big difference. After 20 years overseeing restaurants and cleaning facilities, these are the best little pucks to keep on hand to give out to your employees. Sometimes, it's the little things.