Srixon will be the official golf ball on the European Seniors Tour for the 2000 and 2001 seasons.
Last year, Srixon player Tommy Horton won the John Jacobs Award for topping the Order of Merit for a fourth successive season.
The Srixon Hi-Brid, a post-balata wound ball, will be available at all tournaments throughout the 2000 Seniors schedule as the official range ball.
It has a 30 per cent larger core than conventional wound balls to provide an explosive initial velocity with lower spin off the face of a driver for distance and higher spin off the face of irons for control.