This applicator can be used without opening and closing the head cement lid by fixing it to the base plate (pedestal) of the vise.Please replace the head cement with the attached glass bottle.You can choose two needles with different diameters, one for standard and one for midge, to match your fly.If the head cement has hardened on the tip of the needle, pierce it several times with the included needle cleaner to clean it. Weight: 90 g