... , Environment Friendly Double Loop Wire also called twin loop wire, well coated and finished with nylon, ... Testing, PONY Testing, the ideal binding material of spiral notebooks, notepad, calendars ect., Size Available: from ... : Loose-leaf notebook / calendar / diary / notepad / album / spiral notebooksAdvantages & Highlight: Exact Pitch, Bright Surface, Environment Friendly Specifications: SizePitsh ...