# init(size:edgeRadius:) Creates a rounded box shape with the given size and edge radius. ``` init(size: SIMD3, edgeRadius: Float) ``` ## Parameters `size` The size of the box along each axis. `edgeRadius` The radius of the rounded edges. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)