Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Animated Loading Icons Free.
Animated Loading Icons v1.0
NOTE If this download link requires a Decryption key, please enter this key: RVhvhoxuQ-U-XbcmF4aQMn-qzuwtUyvFTwdWhfAEDA8
This asset includes a variety of different loading animations and effects, suitable for most types of games.
– Pulsing effects
– Spinners, and more.
Check out the Webplayer Demo to see all the icons in action.