It's all stainless steel, and even has a hooked end so it doesn't fall into your cup as you let it steep. Because of it's narrow shape, you can also use it as a stirrer. The whole operation is a breeze: just scoop your tea, slide the cover, and let it steep! A great update to the old tea ball. We received one as a gift recently and have loved it ever since. It's available locally at A+R for $20.