This retractor is 1 in x 9 in.
This retractor is 1in x 10in.
This retractor is 3 inches x 12 inches.
The working blade length is 2 1/2in.
Two sets of interchangable blades.
Side Blades - 1 1/8" Deep Center Blade - 7/8" x 7/8" ...
3" Wide x 2" Deep, 7" Spread
3" Wide x 4" Extra Deep Center Blades, 7" Spread
3" Wide x 2" Deep Center Blades, 7" Spread
3" Wide x 2" Deep Center Blades, 10" Spread
3" Wide x 2" Deep
3" Wide x 4" Deep