This float is handmade by me. I poured all my technical know-how into its creation with the concept of balancing price, durability, and stability to the best of my ability for you, a fishing enthusiast. ◇Explanation of the meaning of "12-15 type": The first number, 12, represents the size of the sinker used (12 gou). The boundary between green and black in the photo indicates the waterline when a 12-gou sinker is used. The second number, 15, represents the buoyancy of the float when the sinker and basket/bait are combined, indicating 15 gou of buoyancy. In reality, there is some additional leeway. ◇Specifications: The total length is 36cm, weight is 16g, and the width of the fin is 7.5cm. ◇Structure and Features: The main body is made of styrofoam and has been triple-coated. The green part uses fluorescent paint. The lower part is equipped with stainless steel and a few grams of balance weight, fixed to the main body, which mitigates the effects of waves and stabilizes the float's posture. Its slim shape also minimizes any discomfort for the fish, allowing for sensitive detection of bites. A rotatable fin is attached to the top, making it resistant to crosswinds and maintaining a vertical position. Furthermore, the fin size has been increased and coated with fluorescent paint for excellent visibility. ◇A Φ3mm tube is attached to the fin, allowing for the attachment of a size 37 chemical light stick, making it usable for night fishing. ◇Notes and Requests: The shaft is made of a bamboo skewer for weight reduction, so please handle it with care. The fin part is prone to deformation, so please use the support material provided during shipping to prevent it. As this is entirely handmade, please understand that it may not be perfectly uniform. We kindly request that returns based on dissatisfaction with the appearance will not be accepted.