These knee wall countertop support brackets are engineered from 1/4-in. thick solid steel with a 2.5-in. wide support arm and 6-countersunk mounting holes on each bracket, providing a sturdy, stable anchor for a variety of countertop installations. They are designed to handle substantial loads and are suitable for granite, quartz, marble, butcher block, or other surface materials, offering reliable reinforcement where counter edges meet a vertical wall. Available in 4-lengths-16, 14, 12, and 10 in.-the brackets accommodate different countertop depths and configurations, from large kitchen islands to compact workstations. The L-shaped profile is paired with a corrosion-resistant powder-coated finish, which helps resist scratches and daily wear while maintaining a low-profile appearance that blends with both modern and traditional interiors. Each package contains 4-brackets and the associated mounting hardware, including 24 screws (6-per bracket) and pre-drilled countersunk holes that let screws sit flush for a clean, unobtrusive look. Designed for straightforward installation, these brackets are suitable for residential or light commercial use, including kitchens, bars, workbenches, floating counters, and storage areas. The durable construction emphasizes long-term support across various remodeling projects, ensuring that counter surfaces remain securely anchored over time. This approach supports consistent alignment and reduces flex under heavy loads. Color: Black.