CAP Barbell 25 lb. Adjustable Dumbbell
This dumbbell features a weight adjustment system that is safe, and quick, and allows you to rapidly switch from one exercise to the next. It is possible to adjust the weight in increments of five pounds from 5 to 50 pounds. The price drops from $99.99 to $69. Shipping is free for orders over $35, or it adds $6.99.