These bark pieces are great for making Tillandsia or Orchid mounts. No two are exactly the same size or shape but they all work great for making mounts. Most pieces are not entirely flat, rather they have some curvature to them (they come from a tree). We are now offering cork by the pound. This will come in various shapes and sizes and can easily be cut into whatever size you want. Most pieces you receive will be much larger than the pre-cut sizes offered, and are a considerable savings compared to the precut slabs. It is sold by 1 pound increments. If you want 10 pounds add 10 of our 1 pound option from the drop down. Any excess shipping cost will be bill to the email address used on your order. Please pay this bill before we ship. Thank you.