Joe Burns and Usman Khawaja scored centuries as Australia dominated day one of the second Test against West Indies in Melbourne.
Burns (128) consolidated his spot after being under pressure leading into the Test as Khawaja, returning from a hamstring injury, scored 144 before falling late in the day.
The hosts, leading the series 1-0, finished Saturday at 345-3 after controlling proceedings having been put in to bat at the MCG.
David Warner (23) missed out after a typically entertaining start, while Steve Smith (32) and Adam Voges (10) were unbeaten at stumps.
Jerome Taylor (2-83) and Kraigg Brathwaite (1-31) were the Windies' wicket-takers on another bad day for the tourists.
Persistent rain had delayed the start of play and the removal of the covers revealed a pitch with plenty of grass.
Encouraged, Jason Holder won the toss and elected to bowl, but he would regret that decision.
Warner started aggressively, but his 12-ball 23 was ended when he skied a pull off Taylor and saw Marlon Samuels juggle a catch.
If that gave the tourists hope, Khawaja and Burns - who kept his place ahead of Shaun Marsh - took it away from them.
Despite the grass, the wicket provided little assistance to the bowlers, although Khawaja did give the Windies a tough chance they were unable to take.
The pair brought up their centuries in the 58th over.
Burns cut Jomel Warrican through point for his second Test ton, while Khawaja's third came thanks to a misfield.
The 258-run stand was broken when Burns came down the pitch to Brathwaite and was stumped by Denesh Ramdin.
Smith settled well before the new ball, which brought the wicket of Khawaja.
Samuels had put the left-hander down at cover before he tickled a ball from Taylor to Ramdin down leg side to end a tremendous innings.