This products are keychain with a brass shackle.
The belt hook and the two rings are made of brass either.
You can choose from 9 colors of leather parts.
In addition, you can choose from 10 colors for sewing thread, so there are many variations.
Please click the link below the image for more details.
Shackle key chain(Product image-009) 
Shackle key chain(Product image-005) 
Shackle key chain(Product image-004) 
Shackle key chain(Product image-008) 
Shackle key chain(Product image-006) 
Shackle key chain(Product image-001)
Click here for the details of “Brass shackle keychain”.