Fitness Mad Small Head Block Pilates Allignment & Posture 205 x 150 x 25mm - Blue This small block is used in Pilates to slightly raise the head in reclining postures in order to achieve the correct neck alignment.  It can also be used to correct the tilt on the pelvis or for support between the knees. Non toxic EVA foam.  Product Features Used in Pilates to slightly raise the head in reclining postures in order to achieve the correct neck alignment Can also be used to correct the tilt on the pelvis or for support between the knees Non toxic EVA foam. Size 25mm x 150mm x 205mm Colour Blue Model FBLOCK25