This is a sample product. The weight isn't specified, but after weighing it, it came to 17 grams, so I think the contents are about 15 grams. According to the feeding guide: For dogs weighing 2 kg = 1.5 grams For dogs weighing 3-4 kg = 3 grams For dogs weighing 5-7 kg = 6 grams For dogs weighing 8-10 kg = 9 grams (The non-sample product is 90 grams for 3800 yen (excluding tax), which is 46 yen per gram. At 15 grams, this would be equivalent to 690 yen, so I think it's a good deal.) Alcale One for Walking - Contains two types of hyaluronic acid Antioxidant ingredients support health.