Pro Ears Pro Tac 300 Behind The Head Electronic Hearing Protection, Military Grade Tactical Ear Muffs, NRR 26 DB, For The Range, Shooting, & Hunting, Green. Product Dimensions? 4 x 6 x 9 inches; 6.4 Ounces. Item model number? PT300GBHH. Department? Unisex-adult. Date First Available? June 22, 2010. Except on weekend or public holidays. We stand behind our products. Your receive the wrong item.