Functions: Features this durable, lightweight, aluminum Jumbo Marker, that is not only efficient to use, but also effective to carry, as it folds for easy portability
Features: Consists of a built-in, adjustable dial bubble for accurate center-line location and web strap to hold marker in place; This handy tool features a calibrated protractor and an adjustable triple-jointed marking arm
Measures: The Jumbo (#4) version works with pipes measuring from 8 In. to 48 In. in diameter