Vater MV-B4PWR Power Bass Drum MalletsProduct Details: Front Heavy Shaft Design 0. 870" Diameter at Grip 0. 890" Diameter at Head Very Durable Hard Felt Heads Designed for 28" 30" Drums ITEM DETAILS: Vater Power Marching Bass Drum Mallets feature shafts that start out at a 0. 870" diameter in the hands, increasing up to a 0. 890" diameter at the head. This front loads the weight toward the hard felt heads, giving you extra power behind each swing. The thick shafts are also very durable,