The opening dimensions of this claw are 10mm at the smallest opening size up to 152mm at the largest opening size. The handle is 17″ long from the top disk to the counterweight. This tool includes one counterweight. 
This claw tool is completely made of stainless steel, from the wires to the super straight center post. The straightness, rigidity, and even balanced weight makes this product the refined claw tool that it is. The knurled handle and balanced weight on this tool allows for effortless and even rotation. 
 “This is the most refined claw tool that I have ever held. I can say this with confidence after 7 years of research and prototyping. This product has been thoughtfully designed. We have taken the time to refine to excellence, and thoroughly test this claw tool. We are now thrilled to introduce it to the glass community.” 
We worked directly with some of our greatest resources in order to find the absolute best (metal grade) wire type to use for this tool. We selected a type of stainless steel that we can harden to RC42 (that’s about as hard as steel can get). We wanted the best spring tension that we could get while still using stainless steel which will retain its luster and its form through heavy use.