Apprx Dimensions: Width 260mm, Height 96mm, Depth 96mm This product is a Bulkhead replacement unit when installing any of our Pro Race Floor Mounted Pedal Boxes. If you are not intending to install an OBP Floor Mounted Bulkhead fit pedal box to the Bulkhead then this product must be used to ensure that the pedal box has the support needed that the original Bulkhead would offer. To install this product, simply line the back of the unit to the back of the pedal box and bolt together and to the floor accordingly.