我看到还有石头的,比如https://www.amazon.com/Natural-Gemstone-Bracelet-Necklace-Earrings/dp/B07PN66HQ6/ref=sr_1_21?crid=2B2LBPF63FFAR&dchild=1&keywords=8mm+round+beads&qid=1584730949&s=arts-crafts&sprefix=8mm+Round+Beads%2Carts-crafts%2C154&sr=1-21
为何也这么轻? 居然才4 ounces? 直径8mm,100 PCS石头珠也,不可思议。