They are quality solid brass button studs. [ Brass - Nickel / Rivet back ]
This is suitable for use in button of leather accessories.
For example, Coin case, Leather strap, Leather bracelet and more.
At first, It will punch holes in leather. Then tap lightly with a hammer and fasten the male and female.
This hook is made by skilled Japanese craftsmen.
Size / See the 3rd picture of dimensions in each part.
Material / Solid brass
Color / Brass, Nickel
Weight / 3 g ( 1 set )