Labels & Tags
Label Planet® 65 Per Page/Sheet, 50 Sheets (3250 Metallic Silver Sticky Labels), All Purpose Blank Small A4 Address Shipping Stickers, for Laser Printer Only, UK LP65/38 LS, 21.2 x 38.1 MM
Metallic Silver Self adhesive labels 21.2mm by 38.1mm Labels Created in and dispatched from the UK Will not jam your laser printer
https://www.bizrate.co.uk/labels_tags/label-planet%C3%A2-65-per-page-sheet-oid33075326201.html