Card Sleeve with Pull Out Extender Section Which Zings Back into the Sleeve When You Let Go. Great for Business Direct Mail, Corporate Event Handouts, Pos Information Leaflets Etc. Size: 200x90x5mm. Print: 4 Colour Process. Material: 500 Micron Box Board. Poa Dependant on Quantity. Hand Made in Britain. Mailing Service Also Available. Standard Sizes Mail as Large Letter. Minimum Quantity: 250.