The Nike Strength Training Ball is a 6 lb black and yellow medicine ball made of rubber, suitable for weight lifting workouts. This inflatable ball is designed for fitness enthusiasts looking to add a new dimension to their exercise routine. With the Nike brand name known for quality and performance, this medicine ball is a versatile and effective tool for enhancing strength and flexibility. Ideal for athletes and individuals seeking to improve their overall fitness levels, this medicine ball is a must-have for those looking to add a new element to their training program.