9" x 15" (230 x 380mm) Clear 140g/35 Micron Poly Bags with Suffocation Warning From the UK - Perfect for FBA available in 100 or 1000 (1,000) : Amazon.co.uk: Stationery & Office Supplies
Web-tex Heavy Duty Resealable Poly Bag Set - Pack Of 12 | UK Safety St
Express Polythene - Plastic & Paper Bags, Boxes, Sheeting, Tarpaulins