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Putnams Wedge - Find a Simple Solution for Complicated Back Problems! How does the Putnam Wedge work: the wedge adapts a horizontal seat to an 11 degree angle: this gently rocks the pelvis forward on the hips, taking the strain off the lower back. Covers: grip-right velour material which prevents slipping.
Features:
Dimensions: 40cm x 37.5cm x 14cm (16" x 14¾" x 5½")