I can't help but comment that the flat sided bobbins are not "Midlands" bobbins. Midlands are the straight, skinny bobbins that have spangles (bead ring) on the bottom. Also, 26mm is the length of the pin, not the diameter. Most beginners will be using 0.65mm diameter pins with thick Lizbeth 20 thread.
![I Restored an Antique Bobbin Lace Pillow [CC]](http://i.ytimg.com/vi/dfhLnMZGpyo/mqdefault.jpg)
![I Restored an Antique Bobbin Lace Pillow [CC]](/img/tr.png)
I can't help but comment that the flat sided bobbins are not "Midlands" bobbins. Midlands are the straight, skinny bobbins that have spangles (bead ring) on the bottom. Also, 26mm is the length of the pin, not the diameter. Most beginners will be using 0.65mm diameter pins with thick Lizbeth 20 thread.