Each pair is made from merino wool and I would recommend hand washing all pair and laying flat to dry to avoid pilling.

Measurements:

Cuff:  approx. 3"
Heel to toe:   All socks are approx. 3 1/2".  Some in picture appear to be smaller but, when laid flat, are 3 1/2"
Top of Cuff to Heel:  5"

Questions are welcome...thank you for looking.