Originally from Screwfix, never used, just been sat in the garage.
Gutter diameter is 76mm ("mini"), so more for a shed than a house.
I think it's similar to https://www.screwfix.com/p/floplast-shed-pack-round-miniflo-half-shed-water... but without the water butt attachment.
Miniflo guttering set (Blackbrook WA2)
This offer has been gifted to someone and is no longer available.