Waziaqoc 100 Pack Binding Combs, 1/4 Inch Diameter Black Comb Binding Spines, 21-Ring, 20 Sheet Capacity, for Letter Size Paper

["High Quality Material with Customizable Length – Made from robust plastic that resists cracking and maintains color, these spines offer excellent sturdy and can be reused. Each spine can be easily trimmed with scissors","Perfect 1/4-Inch Diameter for Standard Documents – With a 20-sheet capacity, these binding combs are ideal for creating neat, professional booklets. The 1/4-inch (6mm) diameter is the go-to choice","Effortless Compatibility and Simple Operation – Designed for any standard 21-ring comb binding machine, these spines make document binding quick and foolproof. Simply punch, insert, and close to securely bind your pages","Versatile for Professional and Academic Use – From corporate reports and client proposals to school projects, thesis documents, and workshop handouts, these spines meet diverse needs","Generous 100-Pack – This value bundle includes 100 premium black plastic comb binding spines, eliminating frequent reorders. It ensures you always have the right supplies on hand for reports, presentations, portfolios, and manuals"]