AMPERSAND 10-Ft. 8-Rib Offset Patio Umbrella Solar String Lights (Warm White) IMPORTANT: This solar string lights set is designed for offset umbrellas Shape of umbrella ribs: Elliptical. Dimension of each rib: 1/2" W x 7/10" H (12 mm x 18 mm) Comes with an "on/off" switch; LED light quantity: 48; Solar-powered; no electricity required Includes 50 all-weather plastic clips to hold solar string lights onto umbrellas fabric cover ***Please carefully read product specifications before placing an order.***