"COX has established itself as the world's leading manufacturer of handheld sealant applicators by combining innovative design with excellent manufacturing standards and rigid quality management. The 51002-600 single-component bulk applicator meets the needs from the do-it-yourself to the industrial to the most sophisticated specialist markets. Assembly Required No, Common Usage Bulk applicator, Material Type Drawn aluminum barrel, Dimensions L x W x H in. 21 x 8 1/2 x 3, Works With Bulk sealant, Capacity oz. 20. Leather plunger assembly Mechanical advantage 121 Wear compensating device Quarter-turn steel end cap All component replaceable parts"