This is the Replacement Servo Case for the Futaba S3103 Micro Mini Servo. / / FEATURES: Three-piece black plastic case / / INCLUDES: One plastic case top / One plastic case middle section / One plastic case bottom / / SPECS: (assembled) Length: 0.86"" / Width: 0.43"" / Height: 0.78"" / / REQUIRES: (4) Case assembly screws - part #8M00B01001 / / BBS 11/23/99 / ir/jl