Thick Core Label Seal Roll Cores Paper Tubes 40 pieces These are roll cores made of a hard paper material. They are 2mm thick and won't crush even if you press on them with force. Both the surface and the inside are smooth and in a clean condition, making work smooth. Diameter: 3cm, Inner Diameter: 2.6cm Height: 5.7cm How about using them for handmade crafts or crafting projects? They will be shipped in the Yu-Packet Plus box shown in the first photo. These items have been stored at home. There may be some minor scratches. Thank you for your understanding. Free shipping Anonymous delivery