[Description] Material: Alloy 

 

[Specification] Weight: 9g / set (3) inner diameter of 1.9cm (hollow section， adjustable) after wearing inner diameter 1.5cm wide 1.6cm (leaf models， adjustable) after wearing wide 1.4cm inner diameter of 1.5 cm (smooth round models， non-adjustable) 

 

 

Product packaging: transparent plastic bubble film + carton packaging firm against pressure +