The xTool RA2 Pro Rotary Roller is a 4-in-1 rotary attachment designed for laser engraving on round, curved, cylindrical, spherical, and ring-shaped objects. It allows compatible xTool laser machines to engrave items such as tumblers, mugs, bottles, wine glasses, rings, bracelets, balls, and other curved products. The RA2 Pro supports multiple rotary modes, making it suitable for personalisation, gifting, promotional products, jewellery engraving, and small-batch production. xTool support confirms that the RA2 Pro includes both roller and jaw chuck components, allowing it to work in both Roller and Chuck modes.