In January 1977 Wham-O introduced the World Class "80 Mold" 165 gram frisbee. This disc quickly replaced the relatively light and flimsy Master frisbee with much improved stability and consistency of throws even in windy conditions. Throws like the flick and hammer were possible with greater control and accuracy with this sturdier disc. The 80 Mold was used in ultimate tournaments even after it was discontinued in 1983.
In January 1977 Wham-O introduced the World Class "80 Mold" 165 gram frisbee This disc quickly replaced the relatively light and flimsy Master frisbee with much improved stability and consistency of throws even in windy conditions Throws like the flick and hammer were possible with greater control and accuracy with this sturdier disc. The 80 Mold was used in ultimate tournaments even after it was discontinued in 1983