The X Junior Irons are built for kids 5-8 years old or between 41–50 inches tall is small in size only. Every club comes with the some of the same innovative advancements Callaway Golf has put into its X Series® Clubs for adults but tailored for kids. The XJ Series™ Clubs provide the perfect combination of performance and forgiveness so junior golfers can play confidently and aggressively. Now kids can play with golf clubs designed specifically for them and their unique swing needs.