Among the Surma and Mursi people of the lower Omo River valley in Ethiopia, about 6 to 12 months before marriage, a young woman has her lip pierced by her mother or one of her kinswomen, usually at around the age of 15 to 18. The initial piercing is done as an incision of the lower lip of 1 to 2 cm length, and a simple wooden peg is inserted. After the wound has healed, which usually takes between two and three weeks, the peg is replaced with a slightly bigger one. At a diameter of about 4 cm, the first lip plate made of clay is inserted. Every woman crafts her own plate and takes pride in including some ornamentation. The final diameter ranges from about 8 cm to over 20 cm.