Ulmia sold the rights and name to a company in Germany that now manufactures this product.
These unique and effective clamps fill many varied clamping jobs that would otherwise be almost impossible to manage. The mitre rings (A-F) have sharp tips that draw a mitre joint together. Mitre ring capacity is the molding size the ring will clamp. These are strong rings, so an application tool is necessary. Wood workers that have used these clamps swear by them.