These are simple basic parts, flat-pad earring pins. The flat pad is approximately 6mm in diameter, which securely supports larger cabochons and other parts. The material is S925 with gold plating. It's a gentle material for those with metal allergies. (Although small, the pin is stamped with S925.) Size: Flat pad: approx. 6mm, Pin: approx. 11mm Color: Gold *This is a sale of pins only. Earring backs are sold separately. * There may be uneven plating, discoloration, and small scratches. * The color may appear slightly different depending on your monitor environment. Please understand.