General description This product is a set of 20 contact protection caps designed to serve as dust cover shields for 14.4V and 18V Li-Ion batteries. It effectively protects the battery from dust, oil, and water, preventing potential short circuits. Technical specifications Size: 94mm x 61mm x 25mm Material: Plastic Color: Translucent Compatibility and accessories Compatible with BL1830, BL1840, BL1850, BL1860, and BL1890 batteries Package Contents: 20 x Dust covers (batteries not included) Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowed error is +/- 1-3cm.