Aviar is a putter that can be used by all players at all levels. It is often used for both putts and approaches. When thrown it flies very straight with a light fade and not too much glide. This makes it extremely accurate to throw with, which is also the reason why many players like to throw Aviar on shorter throws, which must be very accurate.
The Tour Series Aviar comes in a special Galatic plastic which is very swirly. The plastic is a variant of Innova's McPro plastic, which is a relatively stiff plastic.