Head coach Wayne Pivac said on Saturday Wales are "not the finished product" despite winning the Six Nations. Wales claimed a second championship in three years after France failed to beat Scotland in the last game of the tournament on Friday. Pivac's men lost just once in the campaign, to Les Bleus a week ago, and scored a tournament-leading 20 tries in five matches after winning just once in last year's competition and only three times in the whole of Pivac's first year in charge. "We're not the finished product. We will keep improving and fine tuning," Pivac said. Wales scored seven of their tries against Italy but they also scored four against England and finished the competition running in three in the loss to France. "With no disrespect to the Italys of the world. Scoring a few tries against a side like that you have to back it up against a quality team like the top two or three teams in the world. "And doing that against France, albeit if we came up short, gives up a lot of confidence to think we're on the right track," he added. Pivac is scheduled to take his side to South America during the summer for their next Test matches, but the Kiwi said the coronavirus pandemic could hamper plans. "Those discussions are ongoing and I'd like to think that over the next week or two we'd be in a much better position to talk exact opposition and dates," Pivac said. "At the moment it's Uruguay and two Tests in Argentina. We have to make sure that everything meets up with the (UK) Government in terms of Covid. "It's a moving thing we discuss on regular basis," he added. Wales will be handed the trophy in a ceremony at their training base outside Cardiff later on Saturday. Captain Alun Wyn Jones will be celebrating his fifth Championship win and Pivac his first. Pivac said he hoped to have as many Wales players as possible on Warren Gatland's British and Irish Lions this summer. "First and foremost there's a British and Irish Lions tour that Warren will select," Pivac said. "We'd like to think that we'll get a good representative on it." iwd/pb