Sur-fit Natura Durahesive Pre-cut Wafer With Convex-it 4-1/2" X 4-1/2" Opening 1/2"

Sur-fit natura durahesive pre-cut wafer with convex-it 1/2" opening, with tape collar, 1-3/4" flange, 4-1/2" l x 4-1/2" w size