RV Power Inlet Box with 7 Hole Charging Socket and Adsorbable Cover External Power Box for Motorhome Trailer Caravan Item Type: External Power Box Material: ABS Socket Type: IEC 62196-2 Type 2 Female Installation Method: Recessed Mounting Installation Hole Size: Approx. 90x115mm / 3.54x4.53in Application: This item is for an external mains inlet socket suitable for RV, camping vehicle, motorhome, trailer, caravan. Installation Steps: 1. Find the installation location and mark the hole. 2. Open a 90x115mm square rounded hole. 3. Insert the power box into the hole and connect the circuit. 4. Secure the power box with screws to complete the installation. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin