Professional-grade Wilson JSBB Steel Plate Baseball Referee Indicator

Durable 12-gauge steel construction with precision-molded rubber wheel for smooth operation

Ergonomic handle design with non-slip grip for all-weather performance

Official tournament-approved measurement markings for accurate base distance calls

Heavy-duty spring mechanism ensures consistent wheel retraction after each measurement

Laser-etched incremental markings resist wear from frequent field use

Essential tool for professional umpires, college leagues, and serious tournament play

Used for verifying 90-foot base paths and enforcing official MLB diamond specifications

Features Wilson"s exclusive dual-bearing axle system for ultra-precise measurements

Includes reinforced carrying clip for easy attachment to umpire belts or equipment bags

Machined aluminum pivot joint withstands 500+ lbs of lateral pressure

Game-ready design requires zero maintenance between seasons

Manufactured to NCAA and NFHS equipment standards for competitive play

Contoured wheel guard protects measurement mechanism from dirt and debris

Professional umpire choice for MLB Spring Training and minor league circuits