Ponfei(TM) DIY Stainless Steel Tether NETSUKE Hanging Buckle Connection Hook Screwdriver | Cell Phone Strap For Apple iPhone 4 4S (Silver) The product use high quality 304 stainless steel High polished, Hard and keep glosses. Connection Hook with 2 screws and 1pc Screwdriver, easy to set up and no need to buy any other tool After product install will support same working and 30 PIN USB work. Some people would love to keep their iPhone caseless, but they are deathly afraid of that dreaded drop to a sidewalk or hardwood floor. the Netsuke, promises to save your naked iPhone from that glass-shattering fall.