On The Rocks The Margarita (375 ML) is $10.99 at CBC Liquors, Westford in Massachusetts — in stock now, with pickup and local delivery. The Margarita by On The Rocks offers a premium ready-to-drink cocktail experience, combining high-quality ingredients with convenience. Crafted with Hornitos Plata Tequila, it delivers a classic citrusy and refreshing taste of a traditional margarita.
