Text on the reverse side:
Some extraordinary research has found that couples who are in a romantic relationship, naturally synchronise their heart rates after gazing into each other’s eyes for three minutes.
- A6 size (148mm x 105mm)
- Luxury pearlescent eco-certified paper
- Produced in our London studio
- Trivia fact on the reverse
- GS1 barcode for POS
- Biodegradable cello bag (unwrapped option available)