1)It is made of Polished Stainless steel 304 or 316 (casting).
2)The size are 275mm,245mm,225mm,210mm height with 20mm peristome dimension.
3)There is a rubber in between. It can be used for all size of pool fencing glass.
4)You can adjust it yourself. very strong frameless glass holder,ideal for swimming pool fences.
5)does not require holes to be drilled in the glass for installation

We also could develop new items according to your detail requirements.