This Koło ratunkowe icon is a responsive icon. This means that it's optimized for four resolutions, from tiny 16x16 until highly detailed 80x80. The style comes from the latest Microsoft Office, which makes it perfect for any Windows applications, in particular, those with ribbon toolbar control. Unlike other icon packs that have merely hundreds of icons, this monster icon pack contains 15,000 icons, all in the same style and quality.
The Icon for Lifebuoy is a round circular ring. There are four rectangular pieces on top of the ring, evenly spaced at the top and bottom and left and right. The ring is on top of an object with rounded corners that make half circles between each rectangular piece.