[Product Information]

• GET THE ULTIMATE DURABILTY: Master of Muscle CORE CRUSHER has been designed with the highest professional-grade Anti-Burst Material providing all athletes with the ultimate support and durability
• PERFECT SIZE FOR EVERYONE: At 65CM the Core Crusher is most popular size to give you your best workout and performance
• ACCELERATE YOUR CORE & 6-PACK ABS: Athletes using the Core Crusher will gain killer abs PLUS a more functional core and efficient abdominal and back musculature
• THE ONLY SWISS BALL WITH FREE EBOOK & PUMP: Your Core Crusher arrives with a pump for ease of use as well as a FREE EBOOK with over 20 Core Crushing exercises to maximise your AB training performance
• WORRY FREE SHOPPING WITH MASTER OF MUSCLE: We offer a BETTER than money back guarantee， if there is an issue with your product for any reason we will REFUND you and SEND YOU A NEW ONE