The Roach would relate most closely to an Aviar P&A. It has no bead and is smooth all around for a perfect fit in the hands.
Roach by Discraft

PDGA Official Specifications
Diameter:
21.1 cm
Height:
2 cm
Rim Depth:
1.5 cm
Rim Width:
1.1 cm
Max Weight:
175.1 g
Date Approved:
Nov 30, 2015
Who is the manufacturer?
The Pro D Roach is made by Discraft.
What is the disc model?
This is the Roach. Check it out on our famous Flight Guide! You can also check out more Roach discs here.
What type of disc is this?
This disc is a Putter.
What are the flight numbers for this disc?
The flight numbers are 2 / 4 / 0 / 1. Flight numbers are displayed as Speed / Glide / Turn / Fade. You can compare this disc on our Flight Guide too.