VALYRIA 20pcs Stainless Steel Silver Flower Bead Cap Connector Finding Supplies (8mm( 3/8") Dia) Material: stainless steel; Features: durable and fadeless Color: Dull silver tone size:8mm dia. hole size:0.9mm;thickness:3.2mm;&lt;br&gt;size:10mm dia. hole size:1mm;thickness:4mm Different sizes for u to choose Jewelry makers' must have