Item: Stainless Steel Balcony Edge Distance between clamping edge seat holes: 47x47mm U-shaped clamp size (inner): 3 x 6mm Thickness of clamping side seat: 2mm U-shaped clip material: non-stainless steel Colour:silver Material:Stainless steel Installation application: This clip is suitable for car radio antennas. The clip can be installed on the balcony or tube to connect the car antenna pipe feeder. (During installation, please do not approach the premises with wires or power cords to avoid machine or indirect personal damage) Package Contents: 1 * Fixed Bracket 2 * U-Bolt Clamps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.