Pack of 100 plastic combs, designed for use with binding machines, perfect for projects, presentations, and reports, for use at school, at home, or in the office 12 mm diameter, binding capacity of 95 sheets (80 g/m²), bound plastic pages stay flat, 180° for easy reading or photocopying Easy to add, remove, or replace pages, reusable for other projects, also suitable for calendars and photo albums