Rugged - durable and robust in constitution or construction; enduring; "which has a home brimming with boys You will need to have rugged household furniture" The phrase 'the strongest' is right, when 'one of the most powerful' is incorrect. In English, the superlative sort of the adjective 'powerful' is 'strongest.' https://vapeandchews.com/product/strongest-cbd-disposable-vape-uk/