Style L bobbins are typically used with home sewing embroidery and small commercial sewing machines
Style L is the most common bobbin style used in home sewing machines. Its diameter is approximately that of a U.S. nickel, and its height is slightly shorter than 5 nickels stacked.
Note - Style L and style G bobbins are very close in size. Both bobbins have about the diameter of a U.S. nickel, but style G bobbins are taller. They are almost never interchangeable.
Style L Bobbin Dimensions
Diameter: 27/32" (0.837 In.), 2.13 cm
Height: 23/64" (0.359 In.), 0.91 cm

Left: Style G bobbin. Right: Style L bobbin

Information
Bobbin Buying Guide
Machine / Style Reference
Bobbin Style Guide - PDF

Code Description Image Price Stock  
BOBL016WHIT100PLS Bobbins - Style L - Size 16 - White (Magna-Glide Embroidery #12434) - Polyester - Sideless - 100 per $35.80 12
BOBL046BLAC144NMf** Bobbins - Style L - Size 46 - Black (Fil-Tec 11340) - Nylon - Monocord - Sideless - Box of 144 $63.10 15
BOBL069BLAC144Ne Bobbins - Style L - Size 69 - Black (Eddington) - Nylon - Sideless - Box of 144 $52.60 12
BOBL069GRET144Ns Bobbins - Style L - Size 69 - Dark Teal (A&E) - Nylon - Paper Sides - Box of 144 $20.30 13
BOBL069WHIT144Ne Bobbins - Style L - Size 69 - White (Eddington) - Nylon - Sideless - Box of 144 $52.60 7
BOBM016WHIT144Ng Bobbins - Style M+ - Size 16 - White - Monocord - $1 An Oz $1.30