The size of the shell varies between 20 mm and 61 mm.

Fri, 17 Apr 2026 22:53:45 +0000

**The size of the shell varies between 20 mm and 61 mm — and it’s shaping conversations across the U.S. market** For those exploring personal electronics, hygiene products, or precision engineering, a lesser-known detail is quietly influencing product design and consumer expectations: the size of the shell varies between 20 mm and 61 mm. This range