Brand new iPhone 4 and 4s back skinny stainless steel case cover skin Unique design concept the first in the market.Prepaymania truly are the first to market on this absolutely fantastic alternative to the original style case for an iPhone 4/4s, un like traditional cases this unique precision engineered case fits to the back of the phone only (exactly where you would usually scratch the handset by leaving on a desk and general wear and tear) this skinny stainless steel case caresses the back part of the phone by using a "sticky silicon membrane" this really is cutting edge.