Dunlop Intro Beginner Squash Ball-single ball, Model: , Sport & Outdoor Dunlop Intro Squash Ball is 12% larger than standard size Dunlop Squash Ball has a 40% longer hang size for beginner squash players Dunlop Intro Squash Ball for beginners is designed to ensure correct technique Dunlop Intro Squash Ball for beginners is designed to improve skill level