Bratabandha ritual is a very important ritual in Hindu culture. It is also called the Yan-Yajnapavita ritual. True behavior, fire-like brilliance and purity in divine qualities are the three goals of Yajnapavita which can be achieved through this puja. All necessary items like Chuda, Upanayana, Samavartana and the beginning of the Veda are included in it. 

Read More about the Puja set can be found here here: 

Gurumanjari Bratabandha Puja Set