Under NY Sky Auto Open Close Black Compact Folding Pink Floyd Umbrella Coverage arc diameter: 42 inches / 110 cm - Perfect size to protect without taking too many space. Folded length: 11.75 inches / 30 cm - Can easily fit into your bag. Auto-open & auto-close button system - Everything with only on finger. Shaft/frame material: 100% solid steel - It doesn't brake easy. Frame system: Strong 8 Fiberglass rib - Avoids rust