I used a micrometer for certainty (that's why my measurements are in 10ths and 100ths. I was disappointed when it arrived, expecting it to be thicker than my Tantus Curve and Realistic Executive, both of which are less than 1 3/4"(1.75") in diameter. Yet the Goodfella is the thinnest of the three.

I got the micrometer back out. Most of the shaft is 1.34" in diameter(almost perfect split between 1 1/4 and 1 3/8 still), as little as 1.30" at the smallest, but it does have a pronounced ridge that increases the widest point to 1.56" front to back at the deepest insertable point. It is still only 1.34" at the deepest insertable point measured from side to side. The widest point of the flared, very squishy head is also 1.56", still nowhere near 1.75" as advertised.

It is very realistic, I really enjoy watching my wife simulate giving it head and fondling it. She's not much into penetrating toys, but she really loves squeezing it and feeling it's balls. She uses it like other people use stress objects that you squeeze when stressed.