Rayson 31.8mm (1-1/4 inch) Black Plastic Spiral Coil Binding - 3:1 Pitch, 280 Sheet Capacity - Pack of 50 - Perfect for Office Documents, School Projects, and Presentation Binding

3:1 Pitch Coil Binding Spines Size: 1-1/4 inch Pitch: 3:1 Pitch - Means per inch has 3 holes Length: About 12” ( 36-Loops ) Color: Black Max. Binding Size: Binding with U.S. letter size paper ( 8.5 x 11inch) or ISO standard A4 size paper ( 8.3 x 11.7inch ) Easy to Cut: Cutting with scissor for binding other size paper Item Quantity: 50pcs Per Box What is the Difference Between 3:1 and 4:1 Pitch? 3:1 Pitch coil binding ring means per inch has 3 holes4:1 Pitch coil binding ring means per inch has 4 holesThis is very important distinguish 3:1 from 4:1 cause the things to be as different. 4:1 means per inch has 4 holes. They are used with different binding machine. Select a Right Pitch for Your Binding Machine Rayson Model: 3:1 Pitch Binder - TD-132, TD-130, TD1202, TD1202R, TD-1500B34, TD-1500B34R;2:1 Pitch Binder - TD1222;4:1 Pitch Binder - PD-1501, PD-1503;This accessory only can be used with 3:1 pitch binding machine. Type of 3:1 Pitch Coil & Wire Binding Machine Wire Binding Machine Add to Cart Wire Binding Machine Buying Options Wire Binding Machine Buying Options Wire Binding Machine Buying Options Wire Binding Machine Add to Cart Wire Binding Machine Add to Cart Customer Reviews 4.4 out of 5 stars 50 4.5 out of 5 stars 431 4.0 out of 5 stars 42 4.4 out of 5 stars 56 4.2 out of 5 stars 125 4.3 out of 5 stars 27 Price $70.89$70.89 $100.36$100.36 $133.44$133.44 $134.21$134.21 $238.69$238.69 $229.79$229.79 Model PT1202 TD-132 TD1202 TD1202R TD-1500B34 TD-1500B34R Punch Capacity (Sheets) 12 Sheets (80gsm/20lb) 12 Sheets (80gsm/20lb) 12 Sheets (80gsm/20lb) 12 Sheets (80gsm/20lb) 15 Sheets (80gsm/20lb) 15 Sheets (80gsm/20lb) Open Throat Design ✔ ✔ ✔ ✔ ✔ ✔ Die Type Fixed Fixed Fixed Fixed Disengaging Disengaging Holes Shape Square Square Square Round Square Round Hole Quantity 32 Holes 32 Holes 32 Holes 32 Holes 34 Holes 34 Holes 3:1 Pitch ✔ ✔ ✔ ✔ ✔ ✔ RAYSON 3:1 Pitch Binding Accessories COIL BINDING SPINES Add to Cart COIL BINDING SPINES Add to Cart COIL BINDING SPINES Add to Cart COIL BINDING SPINES Add to Cart COIL BINDING SPINES Buying Options COIL BINDING SPINES Add to Cart COIL BINDING SPINES Add to Cart Customer Reviews 4.6 out of 5 stars 286 4.6 out of 5 stars 286 4.6 out of 5 stars 286 4.6 out of 5 stars 286 4.6 out of 5 stars 286 4.6 out of 5 stars 286 4.6 out of 5 stars 286 Price $19.89$19.89 $20.98$20.98 $21.99$21.99 $25.99$25.99 — $29.89$29.89 $33.89$33.89 Size 5/16" 3/8" 7/16" 3/4" 9/16" 1" 1-1/8" Color Black Black Black Black Black Black Black 3:1 Pitch ✔ ✔ ✔ ✔ ✔ ✔ ✔ 36 Loops ✔ ✔ ✔ ✔ ✔ ✔ ✔ Material Plastic Plastic Plastic Plastic Plastic Plastic Plastic RAYSON 3:1 Pitch Binding Accessories Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Customer Reviews 4.4 out of 5 stars 264 4.4 out of 5 stars 264 4.4 out of 5 stars 264 4.4 out of 5 stars 264 4.4 out of 5 stars 264 4.4 out of 5 stars 264 4.4 out of 5 stars 264 Price $19.89$19.89 $20.89$20.89 $20.89$20.89 $23.99$23.99 $28.99$28.99 $26.89$26.89 $25.59$25.59 Size 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" Black Color ✔ ✔ ✔ ✔ ✔ ✔ ✔ 3:1 Pitch ✔ ✔ ✔ ✔ ✔ ✔ ✔ 32 Loops ✔ ✔ ✔ ✔ ✔ ✔ ✔ Material Metal Metal Metal Metal Metal Metal Metal RAYSON 3:1 Pitch Binding Accessories Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Wire Binding Spines Add to Cart Customer Reviews 4.6 out of 5 stars 70 4.6 out of 5 stars 70 4.6 out of 5 stars 70 4.6 out of 5 stars 70 4.6 out of 5 stars 70 4.6 out of 5 stars 70 4.6 out of 5 stars 70 Price $19.99$19.99 $20.99$20.99 $21.99$21.99 $23.99$23.99 $25.99$25.99 $28.83$28.83 $27.99$27.99 Size 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 3/4" Color Multicolor - as picture show Multicolor - as picture show Multicolor - as picture show Multicolor - as picture show Multicolor - as picture show Multicolor - as picture show Multicolor - as picture show 3:1 Pitch ✔ ✔ ✔ ✔ ✔ ✔ ✔ 32 Loops ✔ ✔ ✔ ✔ ✔ ✔ ✔ Material Metal Metal Metal Metal Metal Metal Metal

【Generous Capacity】Capable of binding up to 280 sheets of 80g/20lb paper, ideal for handling large documents and high-volume projects

【Wide Compatibility】Designed for both U.S. letter size (8.5"x11") and A4 size (8.3"x11.7") paper. Each coil measures approximately 12" in length with 36 loops and can be easily trimmed using RAYSON coil crimper pliers to suit specific needs

【Built to Last】Constructed from durable plastic, these coils ensure long-lasting performance and secure binding for all your documents

【Cost-Effective】A pack of 50 black coils offers an economical solution for binding large volumes of documents

【31 Pitch Configuration】Features 3 holes per inch, specifically designed for 31 pitch binding machines, distinguishing it from the 41 pitch format