This is a replacement set of 6 bell cranks for an N Scale MRC/Rowa 2-8-4 Berkshire or 2-8-8-2 Y6B.
This model has been designed for the Smooth Fine Detail Plastic materials.
If printed in the Smooth Fine Detail Plastic materials it will require cleaning before painting. I recommend washing with warm soapy water then soaking in 'Goo Gone' or a similar non-corrosive product for 24 hours. Then rinsing off with warm water and allowing to dry.
For more information please see my blog - www.jamestrainparts.com