The Vintage Brunswick Black Diamond bowling ball is a classic piece of sporting equipment with a retro design. Made of hard rubber with a 3-piece core, this 15lb bowling ball is perfect for intermediate-level bowlers looking for a mid-performance ball. With its sleek black color and undrilled features, this ball exudes a sense of nostalgia while offering reliable performance on the bowling lanes. Made in the United States by Brunswick, known for their quality bowling products, this vintage ball is a must-have for any bowling enthusiast looking to add a unique piece to their collection.