The Brother Embroidery Machine Cap Hat Driver Hoop is specifically designed for use with Brother embroidery  machines such as the BE 1204 and BE-1206B-BC-PC models. This cap driver attachment allows users to easily embroider designs onto baseball caps and hats with precision and ease. The unit quantity of this product is one, making it a convenient and essential accessory for those looking to expand their embroidery capabilities to include headwear.