Featuring stainless steel material, sturdy, durable and safe to use. Can open a wide range of jars and bottles. It works great for most jam jars, and also can be adjusted to fit a smaller size such as coke bottles. Simply slide the white handle along the beam until the jaws touch both sides of the lid, squeeze the handle and turn it anticlockwise while holding the jar. Easy to store and takes up small space in your kitchen drawer. You can also hang it on a hook since there' s a hanging hole on one side of the jar opener. Definitely a must-have kitchen helper! Can be used as bottle opener, great for outdoor picnic or camping.