442cc forged beta-titanium. 3 piece ti-carbon construction. Removable weights in back of sole plate. Harrison Pro 3.5 Graphite Shaft. Winn G7 grip. Matching Headcover Included. DART Weight System Specifications: Each driver comes with 4 adjustable weights - 2 aluminum and 2 brass. Brass weights can lower the CG (increasing the weight) and assist in the shape of a higher ball flight. Aluminum weights can raise the CG (reducing the weight) and assist in the shape of a lower ball flight.