Harley Benton Parts Acoustic Nut 42

Bought to change the saddle of an old japanesethat put the strings much to close to each other.
Got this saddle, and yes, it widened the string-spread maybe 1 mm - but still way too tight !!!
WHO are these saddles made for ? Guitars ½-size ? Then say so !
Maybe could be good idea to write the distance mm cc from high to low string ?
Quality acceptable, but very "plastic".
Ended up in the "maybe will use sometime - box" , will most propably stay there.