Glas is a solvent based ‘professional’ grade glass cleaning spray of a type that you simply can’t find in supermarkets or most high street shops.
Smear and streak free, you just need a small amount and one or two passes with a cloth to get windows or mirrors sparkling.
No need to chase those smears, or get dusty with an old school glass polish.
Tint safe (assuming tints in good condition and applied correctly) and perfect for clear plastics too (just maybe with a softer cloth in these circumstances).