The 2017 $1 Kangaroo at Sunset Silver Proof Coin is a .999 fine silver, proof-finish Australian coin from the Royal Australian Mint, featuring a silhouette of a kangaroo at sunset, with specifications including a 6.03g weight (about 1/10 oz), 21.69mm diameter, and a limited mintage of 5,000, presented with a Certificate of Authenticity.