bitplay Thumb Rest Set for SNAP! PRO iPhone Case (Pack of 2 Thumb Rests) - Black FREE SHIPPING To be shipped by Air Registered Mail. Delivery time up to 15 days This is a spare parts kit that includes 2 Thumb Rest This kit is compatible with SNAP! PRO iPhone Case (Black Color). SNAP! PRO is a new iPhone Case that provides complete solution to protection and mobile photography.