Envelopes
500 Brown Corrugated Cardboard Stiffener Pads Protective Sheets Boards Approx Size 190x190mm Square to FIT UKPS 7" Record Vinyl MAILERS ENVELOPES Packaging MAILING Postal Postage Extra Protection
PLEASE NOTE - THESE ARE MANUFACTURED TO FIT UKPS BRAND 7" RECORD MAILERS. NOT GUARANTEED TO FIT ANY OTHER BRAND OF 7" RECORD MAILERS - CHECK MEASUREMENTS. Quality brown corrugated cardboard stiffener pads / boards / sheets. Made from B-Flute...
https://www.bizrate.co.uk/envelopes/500-brown-corrugated-cardboard-stiffener-oid7242536198.html