Best Coupon Codes at Jumbomax – Valid May 2026

After five years of development and testing, the Jumbomax grip can improve your golf game instantly. The Jumbomax grip eliminates tension with faster club head speed. Golf coaches generally believe that the quickest way to ruin a good golf swing is to hold the club too tight, or to increase grip pressure during the swing, which prevents the club from relaxing on impact. Their finger-palm technology immediately gives you a safer grip so you don't feel the need to squeeze. You will relax your grip on the club, release your hands and arms, and naturally release the club, giving you the smooth, easy and powerful swing you need. You’ll find it easier to keep the clubface square by hitting a straighter, more powerful shot. Yes, these grips are for you.