Thank you for looking. I cannot explain technical details, so please judge from the images. ◎This is a green fork (with a metal case). It is made of zinc alloy, feels solid and heavy in your hand, and allows for easy and speedy green repair (approx. 35g). ◎It will be sold as-is, so please refrain from purchasing if you are concerned. Please judge from the images. ◎I am not knowledgeable about this product, so I may not be able to answer your questions. Thank you for your understanding. ◎Please refrain from purchasing if you are looking for perfection or are sensitive. ◎Please read the product description carefully and make your decision. (Please bid after fully understanding.)