Mixed Sapphire The Stone Trundle Lock RingMarla Aaron mixed sapphire the stone trundle lock ring in yellow gold. Trundle Is A 16Th Century Word That Means A Small Wheel Or Roller. We Wanted To Make A Ring That Had Movement. That Begged To Be Played With By The Wearer. The Trundle Lock Ring Comes In Many Many Variations And Two Distinct Ways A Wheel That Only Rolls And A Version That Opens So That It Can Be Worn As A Lock. The Ring Is Especially Comfortable Because It Is Shaped With Flat Sides