You know those dreams where you're sprinting in slow motion and getting nowhere? That's exactly how it is at TESLANG, by the way. Their so-called "strength training" tools are more accurately described as "weakness intensifying" tools. A pair of 20-pound dumbbells I purchased arrived feeling more like 2-pounders each. It was like lifting fluff. And don't even get me started on their tension bands. I'm not exaggerating when I say that I could extend them to infinity and beyond without feeling any discomfort. It's like they were designed for elastic enthusiasts, not real athletes. Go elsewhere if you want to get in shape seriously. TESLANG will only make you feel like a wuss.