【Item Name】Mini 4WD Moisture-Proof Motor Compact Case, 12-Motor Storage Type, Set of 2. 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 gauge (with battery) 【Features】 ・Developed with a focus on space-saving design among moisture-proof motor cases. ・Can store 12 motors with pinions attached. ・Includes a temperature and humidity gauge. ・Has a desiccant space. ・Provides moderate holding power to prevent motors from moving. ・Alphabet printing for improved motor management visibility. ・The outer case is stackable for easy storage. ＜Humidity Test＞ In a room with 65% humidity, placed with 5g of OZO desiccant for 6 hours. Humidity was around 21% at 30°C. Further reduced to 10% humidity after another 6 hours. 【Consumables】 Outer case: Daiso Thin Storage Container 260ml Uses a relatively inexpensive and easily available case to facilitate replacement in case of issues due to aging. 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 desiccant used accordingly. (The photos show 5g of OZO desiccant, folded three times, being used.) ・It is not a completely moisture-proof case, but it has a sealing capacity that prevents leakage even when water is added. ・Layering marks and scratches specific to 3D printing may occur, but there are no functional issues. ・Although new cases are used, there may be some minor scratches. Please understand. ※Shipping will be in simple packaging to reduce shipping costs.