When mounted on the base and hit, KNOCKDOWN™ targets react and fall over backward. They stay down until reset manually. To mount a KNOCKDOWN™ target on its base, simply snap it into place. Then secure the base to your softwood target stand with four (4) wood screws or two (2) THROOM™ nuts & bolts. For a different experience, mount the KNOCKDOWN™ base upside down so the targets swing and automatically reset. Or remove the targets from the base and hang from a wire.