Shaft Alignment Clamp Set, Alignment Distance - Maximum 7 1/2 in, Beam Color Not Applicable, Clamp Material Aluminum, Compatible Shaft Diameter - Maximum 7 1/2 in, Dial Reading 0-50-0, Includes Chain Clamp, Extension Plate, Fitted Case, Posts, Indicator Post Diameter 3/8 in, Indicator Post Length 9 in, Indicator Post Material Stainless Steel, Indicator Type Dial, Number of Clamps 2, Number of Indicator Posts 3, Operating Temperature - Maximum 114 Degrees F