Longbow Anti-Fog 3 in 1 effect:– Anti-Fog– Anti-Static– Cleaning Long lasting anti fog results. Made in Germany by a leading manufacturer of anti-fog products. Works with all types of lenses – glass and plastic/polycarbonate. Also works with all types of lens finishes including hard coated and anti-reflective surfaces. For best results spray on both sides of lenses leave for 30 seconds and wipe dry with soft tissue - do not use a microfibre cloth. This robust pocket sized container (approx 12ml) is made from aluminium protecting the glass container enabling you to carry in your kit or on your person without worry of breakage or spilling.