The two layers of a spinner ring: the core you wear and the band that turns.
What it is
The inner core is the part in contact with your finger; its inside shape and size decide comfort and fit. The outer band rides on the core and is the part you spin.
Why it matters
Makers often use different materials for each, for example a smooth core with a decorative band. Check which part sets the listed size.
Also known as: Inner Ring, Outer Ring, Core, Band, 内圈, 外圈.
是什么
内圈与手指接触，它的内侧形状和尺寸决定舒适度与合手程度；外圈套在内圈上，是你拨动转动的部分。
为什么重要
品牌常给两者用不同材质，例如顺滑的内圈配装饰性外圈。购买时要确认标注尺寸指的是哪一圈。
又称：Inner Ring、Outer Ring、Core、Band、内圈、外圈。
