From "Motorboating & Sailing"® Magazine
By Bernard Gladstone ©
Boatkeeper
The Fendergrip® is a handy new fender hanger that allows you to adjust fenders height without tying and untying knots. Designed for use with either 3/8" or 1/2" fender lines, this plastic, quick-release fender hanger can be used to attach fender lines to any tubular railing..., as well as to life-lines, most deck cleats and metal grab rails or handrails. ...this hanger permits fender height to be instantly adjusted without having to tie knots or hitches. You simply press a release button and then raise or lower the line attached to the fender. Releasing the button causes a built in stainless steel spring mechanism on the inside to grip the line firmly....