Coil binding threads a single continuous spiral through a row of holes punched along the spine of a document, then crimps both ends so it can't unwind. The most common hole pattern is 4:1 — four holes per inch — and the finished book lays flat and folds a full 360°. It suits notebooks, menus, manuals and calendars because pages turn easily and don't tear out.

Metal and plastic spiral coil run from 6 mm to 50 mm in diameter, binding roughly 30 to 444 sheets. The standard pitch is 4:1, with 3:1 available to match wire-o and ProClick hole patterns. Materials include nylon-coated steel, recyclable PET and flexible PVC, with up to 50 stock colors plus custom matching.

Plastic coil binding (PET or PVC) is lightweight, offers the widest color range and springs back after bending — ideal for colorful retail notebooks and planners. Metal spiral coil holds a tighter, more premium line and resists deformation in transit, so it suits shipped manuals and higher-end books. Twin-loop wire-o gives a squarer spine again for calendars and gift journals.

Typical MOQ starts around 1,000 pcs per color and size, and small-batch runs are welcome for new lines. Samples are free with freight collect, so you can test color and pitch on your own line before committing. Once the spec is confirmed, normal-quantity orders usually take about 7–15 days.

Yes. As a factory rather than a trader, YPS customizes color, cut length and ring count, plates wire-o in gold or rose-gold, and packs in plain stationery boxes or full private-label cartons. Because filament and wire are formed in-house, custom runs stay consistent from sample through bulk.

YPS exports to more than 20 countries, with India, Nepal, Pakistan and Bangladesh among the largest markets. Pricing is quoted EXW; sample parcels move by express courier, while container-volume orders ship by sea for the lowest landed cost. Export documentation is prepared with the shipment.