The phrase "certain characteristics" refers to specific qualities or traits that are being talked about or considered in a particular situation. It means that there are specific attributes or features being focused on or identified. Full definition
Certification refers to the confirmation of certain characteristics of an object, person, or organization. (careerdigital.com)
Employers look for people with certain characteristics for particular jobs. (targetjobs.co.uk)
In addition, high yield shares certain characteristics with stocks, so investors who are already heavily exposed to equities should consider a more modest allocation. (blackrockblog.com)