Describe: Kilner milkshake jars with simple, compact design help you make fresh milk ice cream at home in just 30 seconds. By pouring materials into Kilner jars, then placing springs, capping, and finally shaking to get the finished product. Jar made includes: 1 jar of 0.54L glass with handle; 1 spring ball; 1 tin cap; Note: Do not directly pour boiling water into the product; The product can be cleaned by dishwasher. Use & Storage Use: Specialized in making and preserving fresh milkshakes. Preservation: Wash the product with clean water before use; Do not directly pour boiling water into the product; The product can be cleaned by dishwashers; Store in a cool, dry place. Brand Information Brand: Kilner. Material: glass. Products without warranty.