AAVXG0450 Ultra-High precision carbon fiber Pitch Gauge phone holder for the IRCHA App*** IMPORTANT NOTE *** This product is sold mostly to help pay for the development costs of the IRCHA RC Toolbox App. The iPhone development is done in house but a good portion of the Android development is hired out and paid to outside consultants and this requires funds to keep the Android applications up to date. This is an Ultra High precision Pitch Gauge phone holder for the IRCHA RC Toolbox App. The design is optimized for repeatability so that