These gel sandal cushions help fill in gaps in your shoes, preventing feet from sliding inside the shoes and minimizing discomfort on the soles of your feet. Their designed slit allows them to be adjusted in sandals of all types and sizes. Provides extra support and comfort to the ball of your foot. Prevents from sliding forward in the sandals. Fits all sizes. After positioning carefully, remove backing paper and press the adhesive side firmly into place on a dry surface.