Thank you for viewing! This is a B5 size, 100-sheet pack of宅配ビニール袋 (delivery vinyl bags) with tape. They are strong and can be used with confidence even on rainy days. ❇︎The inside is gray, not black (photos 2 and 3 show the actual product). - Quantity: 100 sheets - Size: B5 (20 x 30 cm) - Waterproof: Rainproof - Durability: Doesn't tear easily when pulled 【Other】 As these are imported goods, the construction may be rougher compared to Japanese products, but they are offered at a more affordable price. If there are any defects, please let us know before leaving a review. #welcomeさんちゃん店