Scott Bonner 45 Teasing Rake, available in 14" 17" and 20 "
With an easy install, this adjustable teasing rack replaces the front roller cradle and teases the lawn, giving it a cleaner cut and reduces thatch in doing so. 
The tines are made from Piano wire and the whole assembly is Zinc coated.
Does not include front roller, picture is for installation purposes only.