This is for one piece of replacement cork for the bottom of our concrete single cigar ashtrays and/or our large 4 holster cigar ashtrays. Upon receipt peel off the back and apply to the bottom. Add pressure to ensure it sticks well. All of our concrete products are sealed to protect from the elements. You can leave your piece outdoors all year long but to maintain it's beauty clean it after use and avoid leaving the cork sitting in water. If the cork gets wet leave it upside down to dry. Any questions please message us. Thanks!