Sikhism and the 5 K's

The 5 Ks taken together symbolize that the Sikh who wears them has dedicated themselves to a life of devotion and submission to the Guru.

The 5 Ks are 5 physical symbols worn by Sikhs who have been initiated into the Khalsa.

The five Ks are:

Kesh (uncut hair)
Kara (a steel bracelet)
Kanga (a wooden comb)
Kaccha - also spelt, Kachh, Kachera (cotton underwear)
Kirpan (steel sword) 
Kesh: A symbol of your devotion to God, your hair is left uncut your entire lifetime, combed twice a day with the Kanga, and held in place by it also. It is then covered with a 

These 5 K's are considered kakkars and are all worn as part of the proof of baptism by the Sikh's. All Sikhs who have taken Amrit were commanded by Guru Gobind Singh at the Baisakhi Amrit Sanchar in 1699 to wear a small comb called a Kanga at all times.