GoFit"s line of premium quality Kettlebells include an introductory training DVD done by Jessica Huthmaker, the owner/founder of Kettlebell Konnection in every package. Jessica Huthmaker is a certified kettlebell trainer and her 59 minute workout DVD will keep you motivated. The GoFit Kettlebells feature colored, vinyl coating to make them safer for hardwood & tile floors. They also have polished handles for comfort and control. Each Kettlebell also includes a training booklet showing all the basic moves needed to get started with your training.