Watch Mystery Box of Back to School Switch-Up Challenge!!! in New Channel | Channify

Mystery Box of Back to School Supplies Challenge with a Switch-up twist!!! The Back to School season is on!! Let us know which is your favorite item for school this year! SIS vs BRO instagram @ sisvsbro_karina_ronald Karina has a new instagram @ kurzawa_karina Ronald's new instagram @ ronaldkurzawa OUR MERCH: https://www.sisvsbro.com Welcome to SIS vs BRO! This is where Karina and Ronald join forces to challenge each other in countless fun videos! Challenges, gaming, and more!!! Be sure to SUBSCRIBE and we will see you in the next video!!! Facebook: https://www.facebook.com/karinavsronald/