Index Card Holder, Index Cards Storage Box Holds Up to 300 3x5” Cards, with Poly Card Guides A-Z, 3x5 Inch - Value Pack : Amazon.co.uk: Stationery & Office Supplies
Advantus 40307 Super Stacker 3" x 5" Index Card Box, Clear, 3 Boxes (40307) : Amazon.co.uk: Toys & Games
Alfion 3x5 Index Card Box Holder Case 4-Pack | Holds UK | Ubuy