Create organized, professional-looking educational materials with this 150-pack of multi-size spiral binding coils. The assortment includes six useful coil sizes, making it easy to bind projects ranging from smaller student reports to larger workbooks and instructional documents.

Each coil features a 4:1 pitch with 48 loops and is designed for binding machines that punch four holes per inch. At approximately 12 inches long, the coils accommodate standard 8.5 x 11-inch letter-size paper and A4 paper and can be trimmed when a shorter length is needed.

The durable plastic construction allows bound materials to lay flat and pages to rotate up to 360 degrees, making the coils especially useful for creating workbooks, study materials, reports, calendars, presentations, homeschool resources, and other educational documents.

Educational Benefits:

• Helps students create organized reports, research projects, and presentations
• Useful for assembling custom homeschool workbooks and curriculum materials
• Supports organization and document-management skills
• Allows students to create portfolios, journals, notebooks, and project books
• Excellent for binding study guides, worksheets, and instructional materials
• Supports project-based learning and student publishing activities
• Lay-flat design makes bound educational materials easier to read and use
• 360-degree page rotation provides convenient access to individual pages
• Multiple coil sizes accommodate projects with different page counts
• Useful for homeschool, classroom, office, and educational resource preparation

Sizes Included:

• 1/4 inch
• 5/16 inch
• 3/8 inch
• 1/2 inch
• 5/8 inch
• 3/4 inch

Quantity: Approximately 150 coils total, with approximately 25 coils per size

Length: Approximately 12 inches

Pitch: 4:1 pitch / 48 loops

Compatibility: Designed for 4-holes-per-inch spiral coil binding machines. Not compatible with Cinch machines, comb binding machines, or wire binding machines.

Ideal For: Student reports, homeschool workbooks, portfolios, educational projects, calendars, presentations, study guides, classroom materials, notebooks, curriculum resources, and document organization.