Catalog Description (from when I bought it in the early 1980’s) :

The Tru-Bal “TRU-PRO” combines the best features of throwing knives designed and used by the world’s greatest professional knife throwers into a new and truly perfect professional throwing knife. It is designed and balanced to be hurled by handle OR blade for uncanny accuracy in the professional style of throwing, and for maximum penetration and control.

Handcrafted of super-tough, specially tempered spring steel and polished to a mirror-like finish, it will stand up to a lifetime of rugged use. The Tru-Balance “TRU-PRO” has a full seven year unconditional guarantee against blade breakage. Complete throwing instructions are included with every order. If a strong leather sheath is desired, please add $4.00 per sheath.

Overall length is 13 1/2″, width 2″, and thickness 3/16″. Knife weight 15 oz.