Our adjustable buckle dentures contain polypropylene. It is easy to use, less expensive and non-invasive. The way to use it is very simple: 1. Soften the dentures with hot water first. 2. Wear softened dentures in your mouth. 3. Clench your teeth and adjust your dentures. 4. Place the dentures in cold water to cool and secure. Its material is strong enough to be bitten without affecting daily eating activities, regaining the power of a smile.