Your body proportions, posture, and preferred fit all influence what modifications your dress will need
stitches used in this pattern: chain (ch), single crochet (sc), double crochet (dc), half double crochet (hdc), slip stitch (slst), increase (inc), 2dc in one stitch (inc-dc), front post double crochet stitch (fp-dc), decrease (dec), decrease with 1fp-dc and 1dc ((fp-dc + dc)tog), bobble stitch with 3dc (3-dc-bobble), back loops only (blo), front loops only (flo)
Two and a half centimeters is approximately one inch
However, if you have the privacy and the need to roll up your sleeves and youre wearing an undershirt quickly remove your shirt and consider the Marine cuff
Sleeves - The Basic Types If you search for types of sleeve in Google, in can be pretty intimidating