Bobbin for fly shuttle - Leclerc

Plastic bobbin for Leclerc fly shuttle.  
Length 18 cm.
Sold individually.
To wind the bobbin, start at the large end. Wind a 2,5cm wide layer of yarn by traversing the feed back and forth (see diagram). When approaching the desired diameter, gradually move the traverse forward, building the bobbin forward the end (see diagram B and C). Finish the feed approximately 1cm from the end of the bobbin (see diagram D).
With a minimum of practice, you will wind uniform bobbins.