Features: 1. Universal Adapter To Install Helmets With Various Head-Mounted Accessories 2. Slide The Accessory Into The Guide Rail 3. To Quickly Connect Or Disconnect From The Railway System 4. Durable, Construction 5. High-Quality Material, , High Quality! 1. Name: Guide Rail Slider 2. Function: Tactical Helmet Rail Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Material: ABS colour: B-ArmyGreen Package Contents: 1 Pair Helmet Flashlight Clips 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.