The Durable SWINGCLIP is made of translucent anti-glare, anti-tear polypropylene, one file is capable of securely holding and protecting 1-30 sheets of A4 paper. There's no need to punch holes or staple your documents, simply swing the clip out, insert your documents and close the clip. Environmentally friendly in accordance with ISO 14021: 100% recyclableIncludes:5x Black5x Red5x Yellow5x Green5x Dark Blue