Amazon.com : Syntus Yoga Block and Yoga Strap Set, 2 EVA Foam Soft Non-Slip Yoga Blocks 9×6×4 inches, 8FT Metal D-Ring Strap for Yoga, General Fitness, Pilates, Stretching and Toning, Black :
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Set of 3 Medium SKWE Wooden Photo Blocks (13cmx13cm)