250ml glass etch. Extremely permanent on glass. If contact with skin wash immediately with cold water. If contact with the eyes start crying immediately :)  The product is specially made so the reaction time is slow like stealth, giving around a 20 min window. After 1 hour the longterm etching is done. Glass etch is not a joke and if used for vandalism can carry serious punishment in some cases jail. We have warned you.
Comes with extra 10mm mop!