Maxx Spectra Case for iPhone 4 4S with Multifunctional Strap System (Eco Green) PREVENTS accidental drops of your iPhone during daily use and operations PROMOTES safe, secure and stable handling of your iPhone (e.g taking photos and videos; single-handed use) PROTECTS your iPhones dock connector port from dirt, lint, moisture and the elements PROVIDES hands-free operation (strap attaches to handlebars, car headrest, etc.) PLUS other unique convenience features (e.g. secures ID's/cards, clip converts to stand)