The umbrella bone is made of alloy, which has a stable structure and will not be easily broken. Premium materials make it durable to withstand powerful wind. This umbrella can protect your skin, and keeps you noticeably cooler on hot sunny days. This is a dual-use umbrella for sunny and rainy days. The umbrella has a diameter of 38.8inch when opened and a length of 10.83inch when folded, allowing it to fit into a medium-sized carry-on bag. It is perfect for travel, business, camping, fishing, and daily use. Suitable for men and ladies. This umbrella supports customization, the logo process is silkscreen. The prices for 1000pcs or over are based on ocean shipments.