Carlon 4 in. Round Old/New Work 1 Gang Ceiling Box - Volume 14.5 Cubic Inches, Diameter 3-1/2 Inches, Color Blue, Material PVC, Mounting Means Base, Ears, and Snap-In Bracket. New snap-in bracket design. Device and fixture mounting. Breakaway flange for small fixtures. Fixture rating up to 10 lbs.