Anyone knows about the sticker meaning?

Hello everyone…;)

Recently a friend has sold me for 400€ a Tabou Manta 116, from 2017 (if I'm not wrong)...and the truth, is that I love it...

I'm used to ride my beloved Naish Titan 160 from 2002, a thousand times repaired, with the nose cut but always faithful and wonderful for low wind, the other one, I'll save it for when the wind blows strong.

The other board in the picture is a Bic Veloce of I don't know which year, which I recently gave to my nephew Adrian, 12 years old... who tried this sport, and liked it a lot, I hope he is perseverant and finally knows what it is to planning... then, there is no turning back, as you know. 😜

The thing is that another friend asked me about the meaning of a sticker on the tail. Would anyone know what it means?...in case it means anything.

I would also like to know your opinion about my boards, my main sail is, by the way, a 2022 Point7 ACZ 7,8 with two cambers under the boom... due to where I mainly sail, the average wind is usually around 12-15 knots (in winter this usually goes up to 15-22-25 on average).

Thanks in advance... and..wish good wind to you all.🤙🏼