Great packaging!
Ultimate Black Vinyl Record Rigid Mailer 345mm x 345mm for 12 inch LP
Protect your valuable vinyl records with our Ultimate Black Vinyl Record Rigid Mailer 345x345mm for 12 inch LP. Crafted with utmost care, this rigid mailer provides maximum protection against bends, creases, and other damages during transit. Safeguard your music collection with confidence and ensure your LPs arrive in pristine condition. Order now and elevate your vinyl shipping experience with our ultimate black mailer!
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Sizing
Inside: 345 x 345mm
Not sure? Use the size guide below or call us on (02) 8750 5347.
Our most popular rigid mailer sizes, smallest to largest.
| Size | Inside (mm) | Good for | Link |
|---|---|---|---|
| DL | 120 x 228 | Vouchers, tickets, DL documents | View → |
| C5 | 152 x 227 | A5 documents, cards, photos | View → |
| A5 | 170 x 230 | A5 prints and photos | View → |
| C4 | 214 x 312 | A4 documents, fits AusPost Large prepaid | View → |
| A4 | 240 x 330 | A4 certificates and prints | View → |
| A3 | 330 x 450 | A3 prints and posters | View → |
| A2 | 450 x 630 | A2 prints and artwork | View → |








Yes. Rigid mailers are made from stiff board (700gsm card or corrugated eFlute), so prints, photos and documents arrive flat. For extra care, write "Please do not bend" on the front.
Our DL, C5 and C4 rigid mailers are sized to go inside the matching Australia Post prepaid envelopes. It's in the product title when a mailer is made to fit.
Peel the liner off the glue strip and press the flap down firmly.
Rigid mailers are made to resist bending. Card envelopes (tough bags) are strong 250–300gsm card that protects documents and catalogues but can flex a little.
The pack size is how many envelopes come in one pack, for example 100 is a pack of 100 envelopes. "Number of packs" sets how many packs you get, so a pack of 100 with 2 packs is 200 envelopes.
Yes to both. We offer 90-day returns on unopened items (see our refund policy), and you can choose pickup at checkout and collect from Minto NSW or Braeside VIC, Monday to Friday 9am to 4pm.
Order online and we'll usually have it ready in 15–30 minutes at either warehouse.
Talk to our team
Call us on (02) 8750 5347
Fast delivery Australia-wide
Via Australia Post and trusted couriers
Pickup in Sydney & Melbourne
Minto NSW and Braeside VIC
90-Day Returns
On unopened items