Description This product is made of copper and glass materials, it is safe and durable. it has the smooth surface, you have the comfortable skin touch. it is small and lightweight, you will feel very relaxed. suitable for man wear. good decoration for your clothes. Feature - Color: Black - Material: Glass and copper - Size: About 1.6x1.6x1cm. - Made of glass and copper material, it is durable and lightweight. - Simple design, it is great to show men's calmness and steadiness. - You clean it easily - You can wear it on the sleeve or collar. - Technology of electroplating design, it looks very smooth. Made of glass and copper material, it is durable and lightweight. Simple design, it is great to show men's calmness and steadiness. You clean it easily You can wear it on the sleeve or collar. Technology of electroplating design, it looks very smooth.