I'd like to purchase the set of 3 alien keychains. ① Big Chap Head Head length: 8.5 cm It's in plastic, but it's been opened, and the blister card has stains and tears. ② Green Alien Height: 7 cm Width: 7 cm Depth: 6 cm ③ Black Alien Height: 7 cm Width: 6 cm Depth: 6 cm Please understand that these are used items before purchasing.