Preacher Attachment - FID Bench [45mm]Preacher Attachment FID Bench [45mm] This attachment specifically targets the Biceps and is a valuable addition to the FID bench. Key Features Material: 25mm Plywood Backing With 45mm Foam Core Adjustments: 3 Height Adjustment Positions (Pop Pin Style) Frame : Heavy Duty Powder Coat Steel, 45 X 45 X T1. 5mm Max Load: Max Weight Of Dumbbells Barbell On Attachment: 125kg Dimensions : L 53cm X W 35cm X H 60cm Insert Size: 4. 5cm X 4. 5cm Preacher