These can be cut down into whatever size works best for you. The Tubes can be reused many times and won't leach any toxins or off flavors. Layers can be customized as your requirements, and it will also affect the price. It is food grade stainless steel cylinders that are excellent for rosining herbal concentrate. Cut to size, fill with herb, fold ends and press.  More details please kindly contact us. Any e-mails from you are welcome!