Sennheiser Replacement Hard Case for MD 421 Microphones, Black Compatibility: MD 421 Microphones Material: Exterior: Polyethylene Interior: Foam-lined Type of Closure: Pivots on plastic hinge, clips close with plastic tabs Carrying/Transport Options: Handheld Dimensions: Exterior: 13.5 x 5.0 x 2.5" / 34.29 x 12.70 x 6.35cm