Gtech Fitness® offers home and commercial cast iron dumbbells for sale from Body Solid, Troy Barbell VTX, USA Sports and York Barbell Company. These cast iron weights are available in traditional hex head, 12-sided and pro-style versions to help outfit different needs, applications and budgets. Cast iron hex dumbbells are the most affordable, while 12-sided iron dumbbells offer a mid-range price with better precision. Pro-style dumbbells are the most durable iron dumbbells and are designed for full commercial gym use. These iron dumbbell options are suited to handle most home gyms, high school weight rooms, college, military and commercial fitness centers. We offer our best prices upfront with free shipping nationwide!