The Arc Protractor for Audiocraft/Ultracraft AC300MKII AC3000,3300,30,33,300,300C is a precision tool designed by The Vinyl Source to assist with setting up and adjusting record player turntables. The protractor features a sleek black color and is specifically tailored for use with Audiocraft and Ultracraft models, providing accuracy and reliability for achieving optimal performance from your audio equipment. This tool is a must-have for audiophiles looking to enhance their home audio experience with precise calibration and alignment.