Reminiscent of vintage glass-style buoys, theseÂ Nautical Retro Glass-Style Buoy Plastic String Lights are perfect for enhancing your nautical themed home or party decor. Use inside in the bar area to add some atmosphere, or string along your porch, deck or patio for a fun, sea side touch. Each set of string lights measures 8.5 ft long. Each buoy light measures approximately 2.5″ in diameter. $35. Buy here.