📮 FREE SAMPLE
Mail Yourself a Free PostKnock Postcard.
See the design, the paper stock, and the Lob print quality before you spend a dollar. We'll send a real postcard to your business address within 5 business days.
No credit card. One sample per business.
What you'll receive
A real, printed postcard
4×6 full-color, double-sided, printed by Lob and delivered by USPS First-Class. Identical paper stock to every postcard PostKnock sends.
Your industry's template
Pick the template that matches your business: dental recall, HVAC tune-up, salon win-back, etc. The sample uses the actual layout you'd send to your customers.
A QR code that works
Scan it. It tracks like a real campaign QR. You'll see how UTM tags flow through to your analytics.
How it works
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1
Sign up free.
No credit card. The sample promo is built in — you'll see it on the dashboard.
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2
Pick your industry template.
Customize the headline, offer, and call to action. The QR code points to a tracking page so you can see the analytics.
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3
Confirm your business address.
We mail it to the return address you set during onboarding — same address that would appear on every postcard you send.
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4
Postcard arrives within 5 business days.
USPS First-Class. Hold it in your hand, scan the QR, and decide if PostKnock's quality matches what you want to send your customers.
Free sample FAQ
Does it really cost nothing?▼
Yes. No credit card during signup. The sample postage and printing are on us. One per business.
Can I choose which postcard design I get?▼
Yes — you pick from our industry templates and customize the copy. The sample is whatever you build.
How fast does it arrive?▼
Up to 5 business days. Lob prints within 1 business day; USPS First-Class delivers in 2–4 business days from the print facility nearest your business address.
What happens after I get my sample?▼
Your account stays free. You can launch your first real campaign whenever you're ready — CSV upload, pick a playbook, send. We won't email you to upsell. We won't call you. The sample is meant to win your trust, not your number.
Can I get more than one sample?▼
One free sample per business account. If you need to compare sizes (4×6 vs 6×9 vs 6×11), let us know — we'll occasionally send extras for genuine evaluation use cases.
Hold one in your hand.
Stop guessing what your customers will receive. See the print, paper, and design quality before you spend a cent.
Mail Me My Free Sample →No credit card. No sales calls. One per business.