which size is a4? c4?

The 'A' prefix is the paper size; the 'C' prefix is the envelope size. A4 paper fits unfolded inside a C4 envelope (similarly A5/C5, A6/C6, etc).

What is the gsm of both the paper and the board? Want a thick board back that won’t easily bend

I don't know what the gsm is but I found them pretty sturdy and sent photos using them.

would my card 160cm x 155cm fit in this envelope

Yes the envelopes are 229 x 162 so your items would fit.

Will this fit a A3 print?

Yes. I use it to fit A3 booklets.

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📬 Seal your success with style and security!

EFFORTLESS SECURITY - Strong peel & seal closure ensures your mail stays sealed and tamper-proof.
ECO CONSCIOUS CHOICE - Made from 100% recycled content, combining sustainability with professionalism.
MAXIMIZE DOCUMENT SAFETY - Heavy duty board back shields certificates, photos, and prints from damage.
CLEAR HANDLING INSTRUCTIONS - Bold 'Please do not bend' print reduces risk of mishandling during transit.
GENEROUS SIZE FOR VERSATILITY - C3 dimensions (450 x 324 mm) accommodate large documents without folding.

Blake Purely Packaging C3 Board Back Peel & Seal Envelopes offer robust protection for large documents with a heavy-duty board back and secure peel & seal closure. Sized at 450 x 324 mm, these manilla envelopes feature clear 'Please do not bend' warnings and are made from 100% recycled materials, making them a smart, sustainable choice for professional mailings.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

B/.179

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Manufacturer	Blake Envelopes
Brand	Blake
Model Number	4200/50
Product Dimensions	46 x 33.5 x 10.5 cm; 2.49 kg
Colour	Manilla
Closure	Self-Seal
Shape	Rectangular
Material Type	Cardboard, Cardstock, Paper
Total Recycled Content	100
Number of Items	50
Size	C3 450 x 324 mm
Sheet Size	C3
Paper Finish	Uncoated
Manufacturer Part Number	4200/50
Item Weight	2.49 kg

BlakePurely Packaging C3 (A3) 450 x 324 mm Board Back Pocket Peel & Seal Envelopes (4200/50) Manilla - Pack of 50

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