The indicator port covers for Indian Scout Bobber are machined from solid. Made of 2 millimeter thick steel, they are coated with matte black epoxy paint. The diameter of the hole is 8.5 millimeters and will allow you to fit all styles of turn signals or stem brake lights. The kit includes a pair for the left and right rear indicators, they will match the shape of your indicators. (3 in 1 indicators are not sold with it) The flashing port covers for Indian Scout Bobber are machined in the mass. Made of 2 mm thick steel, they are coated with a matt black epoxy paint. The hole diameter is 8.5 millimeters and will allow you to put all styles of turn signals or stem brake light. The kit includes a pair for the left and right rear indicators, they will match the shape of your indicators. (3 in