【For Bag Making】Large 21cm size. Easy-to-handle set of 5 made of lightweight aluminum. Aluminum Spring Mouthpiece 21cm x 10.5cm ■Contents ・21cm Aluminum Mouthpiece Set of 5 ・Instructions (How to attach the pins) 1 sheet Lightweight and durable aluminum spring mouthpiece. It closes securely and opens wide, making it easy to take things out. Perfect for everyday bags, pouches, etc. This type is attached by removing the pins at the bottom using pliers. It requires a little skill and strength, but once you get used to it, it's quick. ※ Recipes and patterns are not included. ※ Pliers and other tools are required to attach and remove the pins. ※ Pins will be removed before shipping. ・Because it is spring-loaded, some force is required to open and close. Please be careful not to pinch your fingers. ・Due to the manufacturing process, there may be small scratches, unevenness, and color variations. Please understand this before purchasing. ・There are slight individual differences in size.