XGO1018 Features: * Made of solid Russian birch ply * Wood comes from managed forests and is CARB-P2 compliant * Handcrafted in California * Surface may be cleaned with damp, non-abrasive wipe or sponge * Intended for ages 2-7 * Made in USA Includes: * Set includes the numbers 0-9, the signs + - / *, and comes with a basket for storage Color/Finish: * Since products are hand-finished natural materials, some slight variation in texture or color may be expected Collection: * Collection: Numbers Warranty: * 1 Year warranty