Prym Jeans Buttons American Star in Antique Silver 17mm. Prym jeans buttons are designed specifically for use on denim jackets, shirts and jeans. These non-sew Jean buttons can be attached with the included tool and a hammer or with the Prym VARIO pliers or the tripod mount. These jeans buttons are made of stainless brass and can be washed at 60 degrees and dry cleaned.