・ These are the core rods that were used to wind industrial film. ・ They are made very sturdy. ・ Diameter 90mm x Length 640mm x 2 pieces ※ I think this is a rare material. ※ How about using them for crafting, etc.? ※ Please refrain from purchasing if you are overly concerned about details. ※ We kindly request that you make payment within 24 hours of purchase.