The Flip Toggle Anchor is a single piece, nylon body anchor with a metal tilting head ideal for use in drywall, plaster and hollow wall concrete blocks. It's unique tilting mechanism ensures a trouble-free installation that yields twice the strength of a regular toggle bolt of the same bolt diameter.Kit Contains(10) Flip Toggle Anchors(10) 1/4''-20 x 2-1/2'' Pan Phillips/Slotted Machine ScrewMain FeaturesApplications Drywall, Hollow Block, Walls, and CeilingsTwice as Strong as Toggle BoltOne Strap DesignOnly Requires 1/2'' HoleUsed with Any Bolt Length up to 3-3/4''