Flat-bottomed Waistband Nail-free Detachable Jeans Waist Adjustment Metal Button Feature: Material: brass. The installation surface is flat and comfortable as the original button. Pure copper material, stable and durable, no rust, anti-allergic. After the bottom is finely polished, it is smooth and does not respond to the skin after installation. It has a non-feeling experience and better comfort. Innovative thread structure, detachable, easy to install, unlimited repeated use. The button surface is made of pure copper, and the nails are made of stainless steel, which is durable and non-toxic and can be used for a long time. Notes: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness Please allow slight manual measurement deviation for the data. Package Content: 2x Sewing buttons hook up Buttons sewing buttons button assorted botones large for bulk big crafts small bottons craft colors & size crafting jean button extenders botones ajustables para jeans tightener waist extender for pins to make smaller adjuster pants adjustable buttons extra tighten pant size down Metal Buttons Screw Type I-Shaped Buttons Denim Buttons Silver Committed to creating a comfortable and warm home environment for families so that every family member feels happy and satisfied.