The E7 Vintage Dudley Thunder Heat WC12-RF Softball is a classic 12-inch slowpitch ball made of white leather with a raised seam. It has a compression hardness of 375 and a COR of 0.47, making it suitable for training purposes. This vintage ball from the USA Softball association features a PU core and is part of the Dudley Thunder Heat series, known for its durability and performance on the field. Perfect for collectors or players looking for a high-quality, authentic softball for their game.