Be sure skate tongue is tucked inside the skate not interfering.
Open molding kit. Be sure to place left skate in left skate mold box and right skate in right skate box.
Line left skate up over molding box, be sure that the skate is lined up to fit in the molding kit. Bottom of the skate is at the bottom of the mold. Press skate into the molding kit, applying even pressure. Press down until skate tuck touches edge of the box. *Inside of skate shown below: