Introducing Better Grip Specially Designed to Never Ever Slip! The Secret to the Grip that Won't Slip Is... It Works On The Flat It works on the flat of the nut so it can never round off and Slip. And As One Jaw Pulls the Other Jaw Pushes to Double the Grip Action. Automatically Locks On Target Different Sizes & Shapes Don't Matter Better Grips love to grab on - any Diameter from 4.5mm right up to 70mm. Use It One Handed No Adjusting Needed Use it Like A Rachet Turn it One Way - It Grips, Turn it the Other Way - It Releases. So you can Jump from One Job to the Next in Seconds. Quickly Takes Care of All These Jobs & More... Anywhere Around the Home, Farm, Trade, Car, Motor Bike, Push Bike, Boats, Rounded-Rusty Nuts, Bolts, Pipes & More... The Complete Fastening System:4″, 6″,8" & 10″ Professional Grade: Available for home, car, farm & trade use. Powerful, yet easy to use. Automatically Locks: One way grips, one way releases allowing you to use it as a ratchet. Adjusts to Multiple Sizes: No more swapping tools - fits any size & shape.