STRUCTURES by Malouf Set of 2 Hook-On Connection Footboard Extension Brackets Attachment Kit - Twin-King Universal footboard extension brackets for twin to king size beds Attaches to headboard-only style bed frame to allow attachment of hook-on footboard Simple hardware assembly goes together in minutes Provides extra secure connections, reducing shifting and squeaking Compatible with Structures by Malouf bed frame models ST6633BF and ST5033BF