The pine square pegged newel post half is a great solution when you are keeping your current 90mm newel bases in.
The newel post comes with a 50mm peg on the bottom designed to go into a 50mm hole. The bottom of the newel post above the peg has a upwards chamfer.
The cap is ready to have either a flat cap half or pyramid cap half
The Newel post is is 850mm x 90mm x 43mm (this does not included the peg)