Now you can have it all! Here is a great way to save $16 on the purchase price of all 3 sizes Workout Sandbags with their matching filler bags. And, get free USA shipping also! Our free USA shipping includes all territories, from Puerto Rico to Guam. Both are homes to our happy customers. Below is a review from a many-time return customer who has several of each size, and fills them with different amounts of sand.