Treffpack - C.E. Gätcke's Glas Gesellschaft mbH sell "Applicators"

Applicators offer controlled, precise product application, with flow accurately governed by the spring tension, opening size, and cover material chosen, suiting uses such as acne therapy, insect repellent, sunscreen, and pimple treatment. In use, light pressure opens the valve spring, letting liquid flow into the cover material for application to skin or another surface.