Commercial . Transition around the inside of a 90 degree corner with this inside corner joint • Easily clips over existing small raceway - No screws, tape or glue needed • Perfect for hiding and organizing cords and cables • Only for use on small raceway • Approved for commercial and industrial solutions • Easy to install • Manufactured from high impact PVC and ABS that exceed industry standards • Paintable, even with latex paint • Also for use with Cat 5e/6 wire • FT6 rated • CSA and UL Approved • RoHS rated (safe for schools)