Material: natural ebony gold， natural ebony

Ebony gold: a diameter of about 15.6mm * 15 ， weighs about 36g

                2. The diameter of about 12.6mm * 17 ， weighs about 21g

Ebony: a diameter of about 15mm * 15 ， weighs about 34g

             2. The diameter of about 12.5mm * 17 ， weighs about 21g