Attican Barmix Cocktail Shaker is a very nice product. This shaker is made of 100% stainless steel. It's a beautiful shaker and it won't rust, weaken at the cap or break. It's very sturdy and durable. It holds up to 24 oz. of liquids. This shaker also comes with a jigger (measuring cup). You can measure alcohol precisely to make the perfect cocktails. One side of the jigger holds 1.5 oz and the other side holds 0.75 oz. This cocktail shaker is so fun to use. I've always wanted a shaker to make homemade cocktails. The cap fits perfectly. It seals nicely so there's no mess when you mix it. I've made a few drinks and having this shaker has made it so much easier. It's definitely a conversation starter. This shaker also comes with a very neat e-book that has a variety of popular drinks. This is a must have for summer fun in the sun and entertaining guests. I love it!! You can check out more about Attican Barmix Cocktail Shaker @ http://www.amazon.com/Barmix-Cocktail-Shaker-Stainless-Included/dp/B00WB1I4L8/ref=sr_1_1?ie=UTF8&qid=1433197954&sr=8-1&keywords=barmix+cocktail.