An adequate extender, but note the size description is vague and possibly incorrect!
Unfortunately, I cannot adequately review this as it is much too girthy to fit inside me. 1.25 inches diameter is likely describing the opening of the extender, as in, the amount of diameter your penis should meet so that it fits in snug. It actually adds a lot of girth, more than 2 inches overall I'd say. The opening is more accurately 1.50 inches diameter, while the outer is more around .6.
As I am satisfied with my partner's length and girth, I bought this mostly to add texture to vibrators I own. You can easily slip this onto any vibrator, and can use it for solo play. The material is alright, it feels a little dry and rubbery-feeling, with lube it's much too slippery, and I wish it had a bit more texture.
Note the insertion doesn't go up to the head, so it's possible you might have trouble inserting it from the tip. My partner tried this on, he had trouble maintaining an erection because he described it as "too heavy." Although it does indeed warm quickly as cyberskin should, so temperature is no problem. Unfortunately, like I said, he could not penetrate me with it as it was much too large, so on that front I'll let someone else review it.
Just a friendly review so someone else could be aware of the more accurate sizes before they purchase it! :)
Reviewed by: (Verified Buyer) Pinkablu from Florida.