Quality Fitness. Exceptional Durability. The Philosophy Gym Cast Iron Ruck Weight is an excellent, versatile fitness weight. Constructed of heavy gauge cast iron, with a smooth, wide handle, this fitness weight is a must for anyone’s gym equipment collection. The exterior finish is smooth and black, and designed to protect the weight from corrosion and damage for years to come. These compact weights are stackable, should you wish to increase the weight. Ideal for strength training exercises, this ruck plate can be used for military training, rucking, and numerous other types of exercises like swings and squats, as well as cardio like hiking and jogging. Used in these kinds of exercises, you can burn calories, build muscle mass and strength, improve aerobic capacity, and train your body to resist injury. Made to work inside of a backpack’s laptop pocket or interior elastic pockets, the weight’s smooth, rounded edges and corners are ergonomic and safe. As a backpack weight, the shoulders and back are forced into correct alignment, enabling proper posture. It is also an excellent weight to build strength and stability in your shoulders and hips. Ruck Weight Options: 10 lbs. - 8.75" x 5.6" x .75" Thick 15 lbs. - 9" x 5.75 x 1.2" Thick 20 lbs. - 14.75" x 6.9" x .8" Thick 25 lbs. - 15" x 7" x .9" Thick 35 lbs. - 15" x 9.5" x 1" Thick 45 lbs. - 15" x 9.5" x 1.2" Thick Philosophy - Create Your Perfect Workout We at Philosophy believe in providing premium quality commercial grade gym & fitness equipment that will inspire you to pursue your fitness goals. We offer the necessary equipment needed to help push you to your fullest potential, feel your best, and get you performing better, faster, and stronger - that’s our philosophy. Read more