This diamond pen with a big bling crystal diamond ,. the pen tube and top holder are made of metal , it is durable. several colors to choose , solid color and with small round balls . you can change colors what you like every day . black ink , it is smoothy when we are writing . packing each pen packed by a transparent opp bag , then packed into a big velvet bag ,each pack will includes a small velvet bag either Specification : Size : diameter is 0.34inches , length is 5.5inches Packing includes : Pack of 3 :3 Creative diamond pens+3 refills +1 small velvet bag+1 big black velvet bag Pack of 4 :4 Creative diamond pens+4 refills +1 small velvet bag+1 big black velvet bag Pack of 5 :5 Creative diamond pens+5 refills +1 small velvet bag+1 big black velvet bag Pack of 8 :38 Creative diamond pens+8 refills +1 small velvet bag+1 big black velvet bag Pack of 12 :12 Creative diamond pens+12 refills +1 small velvet bag+1 big black velvet bag Warm notice : the top diamond are not real diamond . Specification : Size : diameter is 0.34inches , length is 5.5inches Packing includes : Pack of 3 :3 Creative diamond pens+3 refills +1 small velvet bag+1 big black velvet bag Pack of 4 :4 Creative diamond pens+4 refills +1 small velvet bag+1 big black velvet bag Pack of 5 :5 Creative diamond pens+5 refills +1 small velvet bag+1 big black velvet bag Pack of 8 :38 Creative diamond pens+8 refills +1 small velvet bag+1 big black velvet bag Pack of 12 :12 Creative diamond pens+12 refills +1 small velvet bag+1 big black velvet bag Warm notice : the top diamond are not real diamond .