High heel inserts must be fitted precisely to work effectively to provide the best foot comfort. The photo illustrates how to fit high heel inserts into shoes. In this position the high heel inserts hold the foot form sliding forward, stabilize high heels and cushion the foot. Note that the ball of foot inserts have dots on both sides that are placed at the points where the foot is widest. When it is in the proper position the toe bar must touch and gently press into the front of the ball of the foot. This keeps the foot from moving forward and down in heels.
In its' proper position the foot will be centered over the slight rise in the middle of the ball of foot cushion. This slight rise targets the head of the middle metatarsal to cushion the foot most effectively. The ball of foot cushion does not crowd the shoe because it is thickest in the middle where cushioning is most needed and tapered along all its' sides. The fronts of the toes and all of the big toe and little toe rest on the insole of the shoe, thereby having room to wiggle inside the shoe even during a footstep.
The objective of the high heel inserts is to provide maximum effective cushioning and hold back the foot from sliding forward without crowding the foot or creating instability in walking. The foot is not pushed up at the heel or allowed to slip sideways by the design of the front of heel cushion, and the toes functions of balance and propulsion are preserved by the ball of foot cushion.