Mokeskin pouch

Mokeskin pouch is a kind of small bag that use for storing items, and no one but the owner can get these out. Harry Potter got one from Hagrid as a birthday present. Harry placed the Golden Snitch that Dumbledore's gave to him after his death, a shard from Sirius Black's broken two way mirror, his broken wand, his mother’s letter and the fake Horcrux locket.

Rufus Scrimgeour also owns one, much larger than the one Hagrid had given Harry and which he used to keep the contents of Dumbledore's will and deliver them to Harry, Ron and Hermione.