If your travels may take you away from Supercharging, or if you simply need home/family/friend charging connections other than the 5-15 (120V) and 14-50 (240V) adapters that came with your Model S or X, these will make you a road warrior. Like-new condition. Originally $45/each in the Tesla Store. Offered for $25/each or $90 for the set of four. Please reply or PM, if interested.