Bestbuy offers Tru Grit - 20-lb Adjustable Kettlebell - Black for $29 (orig. $119.99) + Free Shipping.

Product Description:
Capitalize the benefits of variable strength training with a Tru Grit Adjustable kettlebell. The single kettlebell replaces the need for 7 different weights and provides resistance ranging from 5 lbs to 20 lbs in a convenient space-saving design. Weight increments include: 5 lb, 7.5 lb, 10 lb, 12.5 lb, 15 lb, 17.5 lb, and 20 lb.