Compatible tools: THP-SP (inner diameter 0.4 - 0.6 inches (10 - 15 mm)), THP-P (inner diameter 0.2 - 0.6 inches (4 - 8 mm)), THP-HP (inner diameter 0.2 - 0.6 inches (4 - 15 mm)); Decorative, suitable for repairing, reinforcing and manufacturing documents, stationery, bags, shoes, etc. It is a material with superior strength compared to aluminum.