Color: Black Material: Braided yarn + plastic Connects the DELTA Max to the DELTA Max Smart Extra Battery,Delta 3 to DELTA 3 Extra Battery using the Extra Battery port on the side of the unit. Connects for EcoFlow WAVE 2 to EcoFlow power stations and extra batteries for longer runtime. Supported devices include the DELTA Max,DELTA 2 and DELTA Max Extra Battery DELTA 3 and DELTA 3 extra battery. You can also connect WAVE 2 to DELTA Pro and DELTA Pro Extra Battery using an additional for EcoFlow DELTA Pro to Smart Generator Adapter. Color: As Shown Material: plastic Package Contents: 1*Connection Wire 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.