I am now sandbag training for strength and fitness at home , I made my own home-made sandbag cheaply using an army tank tool bag this home made sandbag cost me £12 or around $17 , I already had the pea gravel which if I had purchased separately would have cost an additional $5 or £3. I purchased the army bag from Amazon and i got the thick bags from a local store. I went for the army style bag as it is made with a thick canvas material , has straps and handles made which go all the way round the bag. This bag has a strong zip and very sturdy design, i managed to fit a bag and half of stones inside this bag, you can use sand as well but i didn't have any of this, sand is cheaper but you must make sure that you double bag it and use allot of duck tape , this bag has very thick material so not much will escape. I looked on Amazon.com for this bag and couldn't find if...