On this episode of Grindset, Cynthia and Brack talk with twin brothers, Jonathan and Jarrett Logan, Co-Founders of Castle Black Inc.

Jonathan and Jarrett takes us on an exciting journey through their lives and careers leading up to Castle Black Inc. and we get major tips on how to sustain success through difficult times. This is an episode you don't want to miss, so make sure to tune in at Kudzukian.com or by downloading the Kudzukian App in the App Store or Google Play.