Help sex my RIRs please?

[Micballin94]

Hello everyone! Quick question, I'm pretty sure the one with the bigger comb here is a cockerel but I would appreciate some help. The other one is a sister from the same batch for comparison. I'm pretty sure she's a pullet. They are Road Island Reds

Edit: They are at about 7 weeks or 8 weeks old

 

[summerb123]

Look like a cockerel

 

[summerb123]

How old?

 

[RoostersAreAwesome]

Cockerel

 

[Micballin94]

How old?

Sorry forgot that part! They are at 7-8 weeks old

 

[summerb123]

Sorry forgot that part! They are at 7-8 weeks old

Yep its a cockerel for sure

 

[Ol Grey Mare]

You're correct, the bird with the large, pink comb/wattles is a cockerel.