Nymphenburg Trundle Lock BraceletMarla Aaron nymphenburg trundle lock bracelet in yellow gold. Trundle Is A 16Th Century Word That Means A Small Wheel Or Roller. If You Know Marla Aaron, You Know They Make Bracelets (And Rings) Using The Rolling Wheel Functionality That Also Open And Close And Can Be Attached To Chains To Be Worn As A Necklace. For This Collaboration, They Worked Together To Create A Hand Painted, Fine European Porcelain Wheel Set In 18K Gold. 14K Yellow Gold,