Folding umbrella comes in several opening mechanisms and styles: manual open/close, auto open/close, and auto open/close with safe lock design. Auto open/close allows easy one-handed operation, and safe lock design holds the shaft stable and won't bounce back. With engineering plastic and fiberglass ribs, it makes a sturdy frame that's corrosion resistant and windproof. For uv umbrellas, aluminum shaft and fiberglass ribs make the umbrella light and easy to carry. To custom umbrella for promotional or gift purposes, we offer compact umbrella, travel umbrella, UV umbrella, and folding umbrella.