Glittery red dice with gold inking, each perfectly reminiscent of the Gryffindor house! The d6 contains the Gryffindor house logo, while the remaining 6 dice contain several other nods to the Harry Potter series. 

These are standard size dice: size guide. 

Check out the other house dice: 
Gryffindor - Gold 
Slytherin - Green
Slytherin - White 
Ravenclaw - Blue
Hufflepuff - Black
Hufflepuff - Yellow