In this video I compare two Slimline pen kits from two different suppliers.
Rockler:
SlimlinePen Kit in Gold
US$1.99 (on sale)
http://www.rockler.com/slimline-pen-hardware-kit-gold
Craft Supplies:
Apprentice Fancy Slimline Kit 24K gold
US$1.79
https://www.woodturnerscatalog.com/p/1/684/Apprentice-Fancy-Slimline-Pen-Kit
They’re almost identical, but the middle band and the clip design make me favor the one from Craft Supplies.