Gather the ingredients and equipment together for the drink.
Fill the rocks glass and cocktail shaker with ice.
Take the raspberry vodka. Measure 3 oz with the jigger and dump it into the shaker.
Take the cranberry juice. Measure 2 oz with the jigger and dump it into the shaker.
Take the grapefruit juice. Measure 3 oz with the jigger and dump it into the shaker.
Take the grenadine and add a splash or two into the shaker.
Put the shaker lid over the shaker.
Shake it up for about 15 - 20 seconds.
Remove the shaker lid and put the strainer over the shaker.
Pour the drink from the shaker into the glass.