I used 4 sets, but there were some left over. Size and other details: [Size] Outer dimensions: W110 x D230 x H70mm, Inner dimensions: W100 x D220 x H67mm [Thickness] 1.1mm Material: Cardboard Specifications: This is a great deal as it includes the separately sold sleeve for the outside. Design: English translation of the French text: Comme je voudrais voir votre visage ravi... (I would like to see your delighted face...) 喜ぶ顔が見たいから・・・ (Because I want to see your happy face...) Soyez plus chic avec un cadeau. (Be more chic with a gift.) Notes: ■ Due to the use of recycled paper, there may be color unevenness and small spots.