Beadcap 8mm Flower Petal is stamped and formed from brass. The inner dimensions are approximately 8mm in diameter x 10mm in depth. The outer dimensions measure approximately 9mm in diameter and 10mm in depth. The hole is 2.5mm and the beadcap weighs in at .0015 pounds. Flower Petal Beadcaps are plated in copper, 24k gold and .999 fine silver and then antique them to give them that aged look.