Taking this analogy a little further, if one needle had to sew on a button (blocking I/O), the other needle could continue doing other useful work even if the other needle took 4 hours to sew on a single button.
Hellip; how to hem pants, sew on buttons and mend socks.
How to hem pants, sew on buttons and mend socks.
Can you sew on these buttons?
Anyone can sew on a button, including you.
5cm. For extra control on deeper necklines in lined or unlined garments, you can, sew one or more additional straps about 7.5cm (3 inches) from the first.
We specialize in producing shank button, snap button, rivet, eyelet, claw beads, buckle, sew on button and trouser hook.