FORTRESS Inspire Railing Stair Aluminum Black Sand Brackets (Box of 4) Bathtub Doors 88 Lever housing height (in 88 Lever housing height (in 42 Edge Type Pressed For Use in Bathrooms Yes For Use in Entryways No For Use in Garages No For Use in Kitchens Yes For Use in Laundry Rooms No For Use in Showers Yes For Use on Countertops Yes For Use on Floors No For Use on Walls Yes For Use with Backsplashes Yes For Use with Fireplace Exteriors Yes For Use with Kitchen Backsplashes Yes For Use with Patios No For Use with Pools Yes For Use with Underfloor Heating No Frost Resistant Yes Installation Type Thinset mortar Ledgestone No Material Glass Package Quantity 11 Sample Available Yes Sealant Required No Shade Variation V1 (uniform appearance) Sold As Carton Style Transitional Surface Type Smooth Tile Format Standard Tile Shape Arabesque Use Location Indoor or outdoor Warranty Limited lifetime Water Absorption Impervious Water Protection Waterproof Water Resistant Yes Waterproof Yes CA Residents: Prop 65 Warning(s) No PEI Rating 1 light traffic UNSPSC 30161700 Frequently Asked Questions (FAQ): Q: Are these brackets compatible with any stair railings a simple periodic cleaning should suffice to keep them looking new