Flex Push Rods
These are my flex push rods that I like to use with my Big Cans and Small Cans with my cartridge grips. They work with most cartridge cartridge grips that use a 3mm plunger tip, like the FK irons Darkllab click grip.
The flex gives more snap on the tip of the stroke which is great for lining and a little off the back of the stroke which is great for shading. Give em a try, you’ll love em.
They come in a package of three.