Packing: boxed (A4)Yo coil (double coil) international standard specifications characteristics common sense comparison tableNotice:Please leave a message or contact our costomer service to choose the color.Inner diameterWire diametermmPitchPackage include(/box)Binding thicknessNumber of papers that can be loadedinside diawire diapitchMax.thickness(80g)1/4''(6.4mm)0.73:1100 srtips4.8mm455/16''(7.9mm)0.83:1100 srtips6.4mm603/8''(9.5mm)0.83:1100 srtips7.9mm757/16''(11.1mm)0.93:1 100 srtips 9.5mm851/2''(12.7mm)0.93:1 100 srtips 11.1mm1009/16''(14.3mm)13:1100 srtips12.7mm1205/8''(15.9mm)13:1100 srtips14.3mm13511/16''(17.5mm)13:1100 srtips14.3mm1503/8''(9.5mm)0.82:150 srtips7.9mm759/16''(14.3mm)12:150 srtips12.7mm1205/8''(15.9mm)1.12:1 50 srtips 14.3mm1353/4''(19mm)1.22:150 srtips17.5mm1657/8''(22.2mm)1.22:150 srtips20.6mm1801''(25.4mm)1.22:1 50 srtips 23.8mm2001-1/8''(28.6mm)1.42:130 srtips25.4mm2301-1/4''(31.8mm)1.42:130 srtips28.6mm2451-1/2''(38.1mm)1.52:130 srtips34.9mm3001-3/4''(44.5mm)1.52:138.1mm365Notice:Our Products:We use true photos to show our products, what you see, what you get. Size error +-3cm is normal. The lighting effects color difference is normal.Our Service:You may chat with us for any questions via TradeManager, we will respond you right way, If we are not online, please e-mail us, we will ge