Wave+ Plus ESD Series Magnifier; 3.5 Diopter (1.85X); Arm Length: 45"; Mounting: Bracket (Clamp); Color: Black; Lens Size: 6.75" X 4.5"; The Leading Magnifier In Terms Of Performance For Use In Static Sensitive Environments; Lens Is Treated With An A/R Coating That Dissipates Static Electricity; Other Product Elements, Including The Lamp (Bulb) Covers, Are Fully Protected To Eliminate Static Build-Up; A/R Lens Disperses Glare From Other Lights In The Immediate Environment; Dissipating The Glare Permits The Operator To Use The Magnifier Without Bending Over The Lens To Eliminate These Reflections; Working With The Head In A Proper Ergonomic Position Dramatically Decreases Shoulder And Neck Muscle Fatigue And Eyestrain So An Operator Feels Less Stress And Has Improved Concentration