The items have been washed, dried, and disinfected, but some residual odor may remain. Please note that these are amateur cuts and may have imperfections. If you are looking for a perfect product, please refrain from purchasing. 24 pieces are needed to complete a chair, but I will include one extra piece as a bonus. No pets or smokers. I sometimes receive requests to combine orders for this product, but due to shipping via postal mail, I cannot ship multiple items in one package. I accept orders starting from 100 pieces, so please comment if you need that many. For orders under 100 pieces, please purchase them individually. I have stock that is not currently listed, so please comment if you need a specific quantity.