These magnetic retainers from Dimension 3D are designed to attach to the roof or roll cage of a vehicle and provide an attachment point for harness shoulder straps to keep them out of the way during driver changes. This makes them ideal for endurance race cars where every split second counts during driver changes.Provides an attachment point for harness shoulder straps to keep them out of the drivers way for easier exit and entryIdeal for mid race driver changesStrong N52 grade magnetsFlat roof mount or curved roll cage mount types availableDimension 3D magnetic harness belt retainers are available in 2 different mounting types.Flat - Designed to be attached to the roof of the vehicleRoll Cage mounting - Features a curved surface to fit with the profile of a roll cage bar. Includes slots to allow attachment to the cage via tie wraps (not included)Magnet Dimensions: 150mm x 25mm