foam block 4"

The three-level design is what sold me — I can drop it to the lowest setting for supported bridge and flip it up for deeper lunges without grabbing a second prop. It hasn't compressed or wobbled once after a few weeks of daily practice.

The three height settings actually help — I've been using the lowest one to ease into deeper hamstring stretches and the mid level for better alignment in warrior two. It's featherlight too, easy to toss in my gym bag.

The 4-inch width is perfect for my shorter arms during seated folds. It’s light enough to toss in my gym bag, though a slightly firmer density would be ideal for standing balance work.