Introducing the Fantom Concealed Magnetic Door Stop, the perfect addition to any project. This innovative system not only offers a hold-open function, but also eliminates tripping hazards while maintaining a sleek and luxurious finish. Say goodbye to bulky door stops and hello to a high-quality solution that meets all your application requirements. Wood Door application only. Fully concealed magnetic door stop that includes a hold-open function. The recommended gap between the floor and the bottom of the door should be a minimum of 3/16" and a maximum of 19/32". Meets ADA less than 5 lbs. of force to open. Typical force required to release a single Fantom stop is 2.72 lbs. Concealed rare-earth magnet technology ensures exceptional mechanical functionality. Fasteners provided: 2ea #8 x 1" Stainless Steel screws. Can be used with low-pile carpet (not advised for use with deep carpet.) Should not be used for outdoor use. Works on larger doors as well as normal-sized doors. Works best without a door closer. Double Doors: For interior double doors, the Fantom can be used in place of flush bolts or surface bolts. Install in the floor and header of the fixed door. See Downloads for installation outline and specs. Specifications Base Diameter: 1-3/32" Bolt Length: 1-3/4" Base Width: 1-11/16" Pin Height: 3/8" Magnet Diameter: 15/16" Magnet Height: 19/32" Strike Plate Length: 3-5/32" Strike Plate Width: 1-5/16"