One of one
A one-of-one card — the only one that exists
Every Cardbop card is a true 1/1: your subject, your photo, your details, with its own serial number. The rarest thing a card can be — and it's yours.
- Numbered 1/1
- The only one
- Serial number
- Slabbed
- From $25
The short answer
A one-of-one (1/1) custom card is the only copy that exists — the rarest a card can be — built from your subject, your photo, and your details, with its own serial number. Every Cardbop card is a true 1-of-1. Design it free and order a $25 Display Card, sealed in a display case, or a $50 Pack of 10.
What one-of-one really means
1/1 means one of one
In collecting, a 1/1 is the single rarest version — the only copy that exists. Every Cardbop card is one.
Its own serial number
Each card carries a serial number that marks it as unique, printed right on the card.
Nobody has the same card
Your subject, your photo, your details — the exact card exists once and only once.
Rarity you can hold
It's not a limited run of hundreds; it's a run of one, sealed in a display case.
Why a 1/1 is the point
A gift that can't be duplicated
The most personal gift is one there's literally only one of.
Mark a once-in-a-lifetime moment
A championship, a proposal, a first season — a 1/1 for a 1/1 moment.
A keepsake with real weight
Uniqueness is what turns a photo into something worth keeping.
A standout in any collection
A true 1-of-1 is the card collectors chase — make your own.
More: custom collectible cards · custom slabbed card · card glossary
Free to design — pay only if you love it
A true 1-of-1, numbered 1/1
Its own serial number
The only one that exists
Sealed in a display case
Single $25 / 10-card Pack $50
Frequently asked questions
What does one of one (1/1) mean?+
One of one, written 1/1, means a card is the only copy that exists — the rarest thing a card can be. Every Cardbop card is a 1-of-1 with its own serial number, so the exact card exists once and only once.
Is my custom card really unique?+
Yes — it's built from your subject, your photo, and your details, and it's serial-numbered as a 1-of-1. No one else has the same card.
Where's the serial number?+
It's printed on the card as part of the design, marking it as a 1-of-1. It's what makes the card a true one-of-one.
Can I make more than one of the same design?+
Each card is a 1-of-1, but you can order a Card Pack of 10 different cards — for a team, a family, or a set — each unique in its own right.
How much does a one-of-one card cost?+
A single Display Card is $25 and a 10-card Card Pack is $50. Designing is free, and you can personalize one in minutes.
Make the only one there is.
More: custom trading cards · personalized cards · What is a one-of-one card?