Nature's Challenge Onyx and Marble Chess Set in Brown and Beige (13.5 in.)Equal parts cerebral challenge and handsome home decor, this chess set from Mexicos Sierra family is entirely hand carved from warm brown marble and translucent onyx. Soft backing on the game board wont scratch the table. materials: Onyx, marble Natural stone some variations in color and or pattern are to be expected Hand crafted item color, size and or motif may vary slightly Warning: Choking Hazard. Small parts not for children under 3 years. 13. 8