sentences:  By 1988, the demand for snowboards was high, and by 1994, in a new factory, K2 had produced its own line of snowboards.K2 became one of the top 5 manufacturers of snowboards in the United States, and it has sponsored a number of professional snowboarders including Gretchen Bleiler.After World War II, Bill Kirschner, the founder of K2 Sports, started manufacturing splints and animal cages.