Vortex Lens Cleaning Pen -The Lens Pen from Vortex gives you everything you need in a small, lightweight package that's no larger than a pocket pen. The Vortex Lens Pen uses a revolutionary non-liquid compound that outperforms other cleaners—won't spill or dry out. Safe and easy to use on all lenses.Reduces static charge build-up.Retractable natural hair brush removes dust.