HOUSWEETY 10PCs Stainless Steel Blank Tags Concave Triangle Charm Pendant 10.05x9.5mm Approx:10.05mm x9.5mm(3/8" x 3/8");Hole size: 1.5mm Thickness: 1.8mm(1/8") Main Material: Stainless Steel; Color: dull silver tone(not silver plated); High quality stainless steel,no fading, nondeformable, allergy free; Not easily to bend and could be printed and engraved very well. Can be worn directly or DIY on the back to your own preferences.It could also be used as a creative bookmark; Perfect findings for a variety of jewelry making.Every findings has its unique design and style and theme, hence the jewelry made with them are unique and represent your own fashion.