【Item Name】Mini 4WD Moisture-Proof Motor Compact Case - 12 Motor Capacity A compact motor case compatible with both double-shaft and single-shaft Mini 4WD motors. 【Material】Heat-resistant ABS 【Size】 Width 14.5cm × Depth 11cm × Height 2.7cm 【Contents】 Outer case, holder inner (3D printed), temperature and humidity meter (with battery) 【Features】 ・Developed with a space-saving design among moisture-proof motor cases. ・Can store 12 motors with pinions attached. ・Includes a temperature and humidity meter. ・Has a desiccant space. ・Provides moderate holding power to prevent motor movement. ・Alphabetical markings for improved motor management visibility. ・The outer case is stackable for easy storage. ＜Humidity Test＞ In a room with 65% humidity, with 5g of OZO desiccant placed inside for 6 hours. Humidity was around 21% at 30°C. After another 6 hours, the humidity dropped to 10%. 【Consumables】 Outer case: Daiso Thin Storage Container 260ml To facilitate easy replacement in case of deterioration, a relatively inexpensive and readily available case is used. Please purchase and replace it yourself. Button battery: LR44 x 2 【Notes】 ・Motors and desiccants shown in the photos are not included. ・The desiccant space is not large due to the space-saving design. Please adjust the amount of desiccant used accordingly. (The photos show 5g of OZO desiccant folded into thirds.) ・While not a completely airtight moisture-proof case, it has a sealing capacity that prevents water leakage. ・Layering marks and scratches specific to 3D printing may occur, but there are no functional issues. ・Although the case uses new materials, some minor scratches may be present. Please understand. ※Shipping will be in simple packaging to reduce shipping costs.