• Filler bags for your extra large Workout Sandbags
  • Recommended for commercial gym use
  • Sold as an option to our contractor bags
  • Held tightly shut with 4" wide hook/loop
  • Durable 1000D nylon fabric
  • Measures 26" x 38" ( 66 x 97 cm ) when unfilled
  • One filler bag can hold all the sand
  • Holds 160 pounds ( 73 kg ) of sand
  • Or, sand can be divided up into 2, 3, or 4 filler bags
  • You supply your own sand
  • Free USA shipping when bought at same time as its outer bag
  • Filling instructions are HERE

For those who want quicker change of sand, we now offer filler bags.  Our extra large filler bags hold the entire load of sand in one filler bag.  This gives you the best feel of the shifting sand.  The sand in the filler bag moves as a whole with the outer bag.  This delivers the maximum shifting sand effect to your prime mover and stabilizer muscles.  You can choose how you use our optional filler bags:  You can take our advice and use one filler bag to hold all the sand, or you can chop the sand load up into separate compartments, using 2, 3, or even 4 filler bags.  The sand in the filler bags takes up the entire length and width of the outer bag.  The thickness of the filler bag can be adjusted by filling them with less sand.  That way you can stack multiple filler bags into the outer bag one on top of another, to create an adjustable weight sandbag. 

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