How deep and big is too much

Me(m) and my GF are in to anal play for quite some time (giving and receiving).

I can take large dildos 5.5 (2.1") cm diameter and 24 (9.5") cm long all the way in. But she is crazy about stretch and depth play and now wants to buy me a new toy which is Master Series x-large anal beads. soooo they are 33cm insertable lenght and 6 cm in diameter. I'm a little bit worried about what can and cannot enter in large intestine. Also I can take a 45cm double dildo but it's onli 3cm in diameter.

How large is too large and too deep?

Please help

If it's the master series xl anal beads that are 5 beads, each 2.5" in diameter… well I can take the whole thing. Currently I am able to take a 3.6" in diameter and I can go 12" deep. I'm amazed, thrilled, scared and worried all at once. I think the type of advice you'll get around here is to listen to your body. If something hurts, stop! Know the difference between hurting yourself and pushing yourself. I mean, let's be honest, some of us like the hurt, a good hurt, but within reason. Take baby steps, take your time, communicate, use lube, don't do anything while under the influence (to the point you are making poor choices), avoid numbing agents, but be creative, explore and above all… enjoy yourselves. It's a journey, treat it as such.