Introducing the Sparx BEAM™ - Sparx Hockey's patented Blade Edge Alignment Measurement device. Utilizing state-of-the art laser technology, the Sparx BEAM measures blade edges to 1/10,000th of an inch - or less than a third the thickness of a human hair. Included with every Sparx Sharpener 3 and Sharpener 3 PRO, SPARX BEAM can be used with any Generation Sparx Sharpener.