Metal sections lock together without specialized tools or technical expertise. Nielsen Bainbridge engineers these aluminum frames with precision mitered corners that align cleanly when you insert the included hardware, no measuring angles or calculating complicated joints. The flat-top profile with rounded face creates a contemporary look that doesn't compete with your work, while the 3/8-inch front lip secures glass, mat, and backing without visible fasteners from the front.

Anodized finish resists scratches and fingerprints through repeated handling and installation adjustments. Three-quarter-inch depth accommodates standard glass, single or double mats, and backing board with room to spare. Each kit contains two matching sections; purchase two kits to complete a frame in your chosen dimensions. Corner angles provide rigid connections, spring clips hold your stack securely, and the included eyelet hanger mounts directly to the frame.

This modular system lets you frame odd sizes or replace damaged sections without discarding entire frames. Standard archival materials fit the depth specifications, making these metal sections practical for everything from exhibition preparation to protecting finished work in storage.