Is the Ring flexible?

The Ring is a neodymium magnet that is not flexible.

It fits a variety of writing and drawing tools. The two silicone stoppers furnished with the Ring ensure that the Ring fits snugly onto your preferred tools.

The Ring is compatible with all writing and drawing tools with a diameter less than 8,4 mm | 3,3 inches.

We are working to provide Rings that will be compatible with additional tools. 

Here are several examples of Ring-compatible tools: 


Bic   Cristal, Pencil, Round Stic  
Caran D'ache   Pablo, Pencil, Supracolor Soft   
Faber-Castell   Graphite pencil, Polychromos   
PaperMate   Classic, Eagle, Reynolds Medium 048, SO246292, Sharp   
Pentel   Slicci Gel  
Stabilo   Pen 68, Pen 88   
Uni   Hi-Uni Pencil   
Zebra   Zebra Color Flight  


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