Care Instructions Care Info Sentry Oak Wall Box with Shelf Dust with soft dry cloth. Wood characteristics: grain, knots, pitting, mineral deposits. Expansion and contraction will occur with changes in humidity. For indoor use only. Seasonal splitting and checking are inherent to this product. Condition periodically with furniture paste wax. Do not leave newspaper or other printed material lying on surface. Wall installation is the responsibility of the customer. Installation instructions and hardware suitable for drywall are included with the product.