Let's cut to the chase, It's an amazing shuttle! Brand: Perfly is the new badminton brand of Decathlon (replacing Artengo) and while I'm not convinced by their racket or shoes (tried it in the shop and it was just awful) they claimed to have made brand new shuttles. For anyone who used Artengo shuttles before it was just a joke. Specs: This model, FSC 990 is BWF approved. It is made of full natural cork and goose feathers (doesn't say the grade). It looks like an AS30 or AS40 with this green sticker around the base of the cork. It is priced at 24 euros the dozen. On court: it feels very rigid, precise, doesn't wobble easily and the flight quality is better than the Rsl tourney #1 which is the shuttle I use for friendly matches or tournaments. When a feather is slightly damaged, the flight quality isn't affected. Also I did not break much feathers in a dozen, instead they frayed. I managed to play from one to two set with each shuttle and the shuttle is still usable for drills after. It will be my shuttle for tournaments next season. Worth a try if you're curious or looking for an affordable top quality shuttle. Below a picture of a clean shuttle and another one with a shuttle used for a whole tight set (a third setter at 21 - 18).