Yes. It is attached to the strap, just below the label on the end with the metal loops.
I am new to yoga also and have found both the blocks and the foot strap a great help for anyone who is not yet flexible enough to make a stretch or a pose. For me, these were a great investment. Hang in there the flexibility will come, but not for a while. These are blocks helpful for someone of any weight.
I do not have the density specs but I can stand on them(170lbs) and they hold up without squishing.
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