Surfblanks Australia has been dedicated to producing the highest quality foam since 1968. Surfblanks Superwhite Superstrong - Appearance - Very fine celled, matt white foam. Strength - Extremely resistant to thumb test at relative density (other makes). Length; 7'3" Width; 23 1/4" Thickness; 3 7/16" Nose Rocker; 5 3/4" Tail Rocker; 2 7/8" Stringer; 4.5mm plywood; 1/8"/1/8"/1/8" cedar Foam density; super lite Use Midlengths