Ultimate Sandbag Training- Core Package -Adjustable Fitness Sandbag 10-20 pounds Heavy Duty Workout Sandbag for Exercise and Crossfit **THE TOUGHEST, MOST DURABLE, VERSATILE, & ORIGINAL FITNESS SANDBAG: The Ultimate Sandbag has been the go to fitness sandbag since 2005. Used by elite military units, rehabilitation clinics, and top fitness programs in over 80 countries. The Ultimate Sandbag is the standard for those that want an incredible fitness training tool that can hold up to the heavy use of serious training. Our filler bag design re-invented what sandbag training could be and allows for the instability of sandbag train **THE STRONGEST MATERIALS AND REMOVE DUSTING: We do not use any sort of fabric, but uses a high density vinyl that is used for building boats! This means there is no tearing of your hands, you can simply wipe down your Ultimate Sandbag to clean it, no leaking of sand/dust because there are no pours to penetrate, along with the STRONGEST material of any fitness sandbag. Our Ultimate Sandbag material is up to 30% STRONGER than Cordura. **OVER 400 EXERCISES: Our innovative design of the Ultimate Sandbag provides you the most effective and versatile training tool available. We didnt just slap handles on a bag, we spent over a decade engineering the Ultimate Sandbag to fit the natural movement of human movement. Most other fitness sandbags have varied width and length, ours is based on analyzing human biomechanics. Each Ultimate Sandbag comes with a training poster, training DVD, and instructional booklet so you know how to star **OUR GUARANTEE: There are a lot of copy cats, but there is nothing like over a decade of engineering the most extensively designed fitness sandbag. That is why we want you to have ultimate confidence in our program. We offer a 30 day money back guarantee (read details below) if for any reason you dont think the Ultimate Sandbag is the very best training tool and experience. Our Ultimate Sandbag also comes with a 3-year warranty so you can focus on the most important thing.getting results! Please note, all packages ship without sand or water