A small golden hourglass filled with blue sand on the top and red sand on the bottom, that can fit into a pocket.

When you flip the hourglass the blue sand slowly starts to turn red and vice-versa, while the sand is flowing time completely stops for everything, and everyone except the owner of the hourglass. You may move, cast spells, attack people, and do anything that you could do normally for 5 minutes or until the sand is disrupted. The hourglass is bound to one person and cannot be used by anyone other than the bound person, if an unbound person attempts to use the hourglass they must make a DC 24 WIS saving throw or be permanently frozen until a Greater Restoration or Wish spell is used.

To bind a new person you must remove every grain of sand from the hourglass and pour it into a silver bowl worth at least 500 GP, you must mix the recovered hourglass sand with at least a liter of blood from the person you wish to bind and then pour it back into the hourglass without spilling a grain. The ritual requires two DC 22 DEX checks to complete and if the ritual is botched the hourglass is shattered.