3PCS 2 in 1 Instant Hair Color Stick, Waterproof and Sweat Proof Hair Dye Stick,

This portable hair color stick features comb teeth for simultaneous coloring and detangling. Instantly cover grays at roots/temples with even application. Waterproof & Sweat-Resistant Formula:Engineered with dry texture technology, our waterproof hair dye stick locks in vibrant Black, Dark Brown, or Coffee shades.