This is the 1995 model of the Head Radical, known as the "zebra" for its white and grey paint job.
If you knew this racquet back in the day, you loved this racquet. It was the 2nd iteration of the Radical line and it was quite a bit more playable/modern than the original 1993 Radical (the yellow and black "bumblebee" model). Agassi played with it beginning in 1995 and it was right at the height of the Nike Ad campaigns that were really drumming up the Agassi/Sampras rivalry that lead up to the memorable Agassi-Sampras 1995 US Open Final.
This racquet is the midplus, which is a bit rare. The oversize (which is what Agassi played with) is much easier to find. But based on how tastes have evolved, in your hands today, the oversize feels like a dinosaur, while the midplus still feels as great as ever.
(Grip size is 4 1/2 and listed was updated as such)