The Schneider Optics iPro Case for iPhone 4/4s is designed to accept the iPro Lenses and iPro Handle. Case fits the iPhone 4/4S. It accept the lenses and tripod mount that is a part of the iPro Lens System. The case employs a bayonet mount to attach lenses and integrates handle attachment points on both sides. As the case is identical to the one that is part of the iPro Lens System, it makes a great spare or replacement to have on hand.