This is a set of four items: milk, oil, shampoo, and treatment (please purchase as a set). - Product Name: ① Iruka no Senaka (Dolphin's Back) CMC MILK - Product Name: ② Iruka no Senaka (Dolphin's Back) Oil - Product Name: ③ Kami Dora Shampoo Tsururincho (Smooth & Silky) Refill - Product Name: ④ Kami Dora Treatment Tsururincho L (Smooth & Silky L) Refill All items were purchased from the official website in May. ① and ② have more than half remaining. ③ and ④ have more than 500g remaining (more than half). I was unable to measure the exact gram amount as I didn't have a scale. I used these products for three months and am now using different ones, so I'm offering them for sale to anyone interested. ③ and ④ were used after being refilled into dedicated containers. Please understand that these items have been stored at home. Thank you for your consideration.