Patented ENGO technology reduces friction, preventing all forms of irritation, blisters and calluses * Low-friction patches apply directly on footwear - no on skin * Provides immediate relief from painful rubbing * Helps heal existing blisters faster * Six Pack Contains: 4 Large Oval Patches (each 2.75" x 1.75") and 2 Small Oval Patches (each 2"x1.5")