5 bobbins per pack.  Choose from the three Aerlit bobbin packs available that are made from a plastic that is harder than the other types, so the bobbin fits tighter. These bobbins fit and coordinate with the Aerlit shuttles Berry Blue Ice, Sparkle Pink Pearls, and Berry Grape Ice. The bobbins color is very subtle, in some pictures they look clear but the have a light color that matches the coordinating shuttle.