1. MLOK metal mouse tail card slot: made of aviation aluminum processing, hard coating anodized treatment, with excellent durability and wear resistance; 2. The remote switch installation board will not fall off after installation, firmly fixing your control line. The rounded/chamfered edges ensure comfort and ergonomic functionality. 3. Widely applicable: It can accommodate switches with a width of about 21mm. Due to its clever design, the length of the switch is not limited, and pressure switches of different lengths can be installed. 4. HL-X light switch installation kit: 2 installation components, 2 Mlok system T-nuts, 2 fixing screws, and 1 hex wrench, weighing only 1 ounce. 5. Mainly applicable to: M300/M600 DBAL-A2 wire controlled switch card slot fixed base.