Free Dpd Next Day Delivery on orders £100 or above (UK Mainland only, Cut off time 3pm)

9x12 Inch Grey Plastic Postage Bags - Mailing Bags for Parcels

Grey Mailing Bags - Polybags 9x12 Inch

9x12 Inch Grey Plastic Postage Bags - Mailing Bags for Parcels

Regular price £5.00
Out of stock
Next Day Delivery Order within 6 hours 44 min
Same Day Dispatch

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Description

Grey Mailing Bags 9x12 Inch 

For smaller items that still require sturdy packaging, our 9 x 12 inch grey mailing bags are the perfect solution. Made from high-quality polythene, these bags are both lightweight and strong, helping to reduce postage costs while ensuring item protection.

The opaque grey finish maintains the confidentiality of the contents, and the self-sealing adhesive strip offers quick and secure closure. These bags are particularly suitable for shipping items like T-shirts, documents, or small accessories, making them a versatile addition to your packaging supplies.

Product Features

  • Dimensions: 9 x 12 inches (229 x 305 mm)
  • Material: Durable 50-micron polythene
  • Seal: Strong self-adhesive strip
  • Protection: Waterproof and tear-resistant
  • Use Cases: Suitable for T-shirts, documents, and small accessories

Grey Mailing Bags Size Guides

Size Guide Size in Inches Centimetres Compared to Paper Sizes Best For
Small 4.5x7 inch 11.4 x 17.7 cm Between A6 and A5 Small jewelry, USB drives, gift cards
Small 6.5x9 inch 16.5 x 22.8 cm Close to A5 Socks, small cosmetics, phone accessories
Small 9x12 inch

22.8 x 30.4 cm

 Between A4 and A3 T-shirts, magazines, documents (Royal Mail Large Letter Size)
Medium 10x14 inch  25.4 x 35.5 cm Slightly smaller than A3 Light jackets, books, larger documents
Medium 12x16 inch 30.5 x 40.6 cm Close to A3  Sweaters, jeans, medium plush toys
Medium 13x19 inch 33 x 48.3 cm Larger than A3  Hoodies, multiple clothing items, larger books
Large 14x21 inch 35.5 x 53.3 cm Between A2 and A1 Coats, bulkier clothing, small blankets
Large 15x18 inch 38.1 x 45.7 cm  Between A2 and A1 Multiple garments, larger plush toys
Large 17x24 inch 43.2 x 61 cm  Close to A1 Bedding sets, large textiles, posters
Extra Large 20x26 inch 50.8 x 66 cm  Between A1 and A0 Large blankets, bulk clothing
Extra Large 21x24 inch 53.3 x 61 cm  Between A1 and A0  Oversized garments, multiple items
Extra Large 24x36 inch 61 x 91.4 cm  Close to A0  Large posters, art prints, bedding sets
Extra Large 28x30 inch 71.1 x 76.2 cm  Larger than A0 Bulk textiles, large cushions
Extra Large 28x34 inch 71.1 x 86.4 cm  Larger than A0 Oversized items, multiple large products
Specifications
Brand: Mr Bags
Features
Shipping

Royal Mail 24 Tracked

Dispatched same day if ordered before 5 pm Monday to Friday. Please allow up to 1-2 days for delivery.

£1.99

DPD Next Day

Dispatched same day if ordered before 3 pm Monday to Thursday. Not available to Scottish Highlands & Islands.

£4.99

Free on orders over £100

Reviews

Customer Reviews

Based on 34 reviews
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J
Joshua Ross
Customer Service Was Amazing

Excellent quality bags. They’re leak-proof, and the service was great.

D
Dalia Farooq
Strong & Reliable

I’m so glad I chose these grey bags! They’re strong and durable. Shipping my items has never been easier, and the delivery was faster than expected. I’ll be ordering more soon.

A
Ava Clarke
Excellent for Sending Parcels

Excellent bags. They’re really thick, and nothing ever leaks out. Perfect for my parcels.

Z
Zoe Martin
Great Value

These mailing bags are perfect for my business. They’re strong, durable, and affordable.

L
Logan Adams
Amazing Value for Money

Amazing quality bags for such a great price. Very happy with my purchase.