Neo Wing badminton shuttlecocks, set of 9, are new and unopened. The construction of the shuttlecocks seems a bit rougher than other manufacturers, with some fraying on the feathers, but they are advertised as durable and cost-effective. Please understand this before purchasing! Suitable for practice. - Quantity: 9 - Model Name: Neo Wing Shuttle Thank you for viewing. The season number is equivalent to number 3. It's not written anywhere, so I'm not sure.