If you want a dragging sled and don't want to DIY one, Christian's Fitness Factory has theirs on sale for $99.95 today with free shipping.
Plate Loaded Drag Sled
That's a good deal for a manufactured sled, so you might want to check it out.
【2次締切迫る】5/21 JBJJF 第8回中国柔術選手権 | 岡山武道館
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