I’m comfy with a 9” dildo but only after “getting warmed up” - foreplay and slowly increasing my limits.

I have two dildos, both are about 7 inches. One is slightly thicker (I rarely use that one unless I'm craving feeling filled out). For reference both can go through a toilet paper roll. I noticed if a toy is thicker than the roll it will definitely not be going inside me (I've tried & was disappointed on the wasted money). Not sure if material has anything to do with it being able to go in, but my favorite toy also has the softest feel & is actually more expensive than other toys I've bought in past.