ltem description from the seller
Material: Primary - Purity:925 Finish:Polished Stone Type_1:Onyx Stone Color_1:Black Feature:Solid Manufacturing Process:Casted Material: Primary:Sterling Silver Accessory Type:Cuff Links Product Type:Accessory Sold By Unit:Pair Gender:Men's Material: Primary - Color:White Men's Type:Cuff Links Manufacturing Process 2:Die Struck