JIGMA Mini 4WD Motor Cleaning Underwater Running-in Jig Long (Compatible with Tamiya Spare Bottle) A mysterious color version with a green and yellow gradient. If anyone wants it, I'd be happy. This product may seem like a simple and unassuming jig at first glance, but everything has a purpose, and this is the shape it takes. It's a practical jig that focuses on functionality, eliminating waste and retaining only the necessary functions for motor cleaning. ✅ Point 1: Design that doesn't put stress on the motor By intentionally not sealing the lid and making it an open structure, internal pressure doesn't increase, and no extra stress is placed on the motor. If sealed → Heat generation causes water temperature and air pressure to rise → Motor is pressed by internal pressure → Unstable rotation... If opened → Although there's a possibility of some water spilling, the motor is stable. Furthermore, the water surface ripples and comes into contact with the outside air, increasing the cooling effect! ✅ Point 2: Wide opening on the back as well Easy to clean and maintain the electrodes Structure that doesn't trap heat and cools easily during cleaning ✅ Point 3: Structure that protects the motor shaft Motor can be removed simply by gently pushing from the back No need to pull forcefully, so there's no worry of bending the shaft and causing "wobble." ✅ Point 4: Copper electrodes for good electrical conductivity Copper with excellent conductivity is used for the electrode part Solid 2mm diameter for stable contact & high durability Motor cleaning is possible with a stable electrical supply ✅ Point 5: Fits Tamiya genuine spare bottles Reliable design for easily preparing cleaning solution Specifications/Notes Completed product delivered → No assembly required, ready to use upon arrival If desired, it's possible to reduce shipping costs with regular mail (consultation required) This product is only the jig for sale. Spare bottles and motors are not included Please wash and dry thoroughly after use 【About Production】 This product is made with a 3D printer and carefully manufactured one by one. We have designed it with strength and performance in mind. Due to the nature of the manufacturing process, there may be fine molding marks on the surface and small dents on the back, but this does not affect use. We would appreciate your understanding of this as a characteristic of handmade products. Also, if you have any points you notice after use or any requests for improvement, please let us know. We will use it as a reference for future product development. ★Also sold on Amazon