High Quality Material The Belt Extender Buckle is made of High Quality Zinc Alloy and Environmentally Friendly Silicone Imported from Korea. The Zinc Alloy is Strong and Rustproof, and it does not Not Easily Fade After Cleaning. Silicone is comfortable and elastic, and it is not easy to break after pulling.Increase Waist Design You Can Use The Elastic Button Extension To Add 1 Inch Or 2 Inches Of Extra Space To The Waist Of The Pants, So That The Waist Can Reach A Suitable Range And Be Comfortable To Carry. At The Same Time, The Pants Can Continue To Be Used, Thus Saving Money.Method of UseSimply Buckle the Existing Button of Your Pants, Then Connect the Other End to the Button Slot of the Pants; No Sewing Is Required, It Expands Easily For Maximum Comfort Space In The Area of the Size of the Existing Pants.Use Widely Stretch Buttons Can Be Used For Suit Pants, Shorts, Casual Pants, Jeans, Etc.