Compatible models Specifically designed for Dodge Ram 1500, Ram 2500, and Ram 3500 cup holders. What it does and why you need it Protects your vehicle: quality acrylic coasters create a dustproof, waterproof barrier that prevents water stains, spills, and crumbs from damaging or discoloring the original cup holder. Improves stability and reduces noise: the textured surface provides grip to prevent cups and bottles from sliding, and it reduces rattling and clinking while driving. Automatic night visibility: builtin light and vibration sensors turn the LEDs on in the dark when they detect vibration and switch off automatically after about 15 seconds. The coasters remain off during daylight to conserve power and illuminate at night for visibility and style. Key attributes Material: durable acrylic — waterresistant and easy to clean. Function: antislip surface, noise reduction, dust and spill protection. Lighting: sensitive light sensor plus vibration sensor for automatic, hands LED activation in low light. Set: includes enough coasters for daily use with convenient replacements when needed. Performance and maintenance Durable acrylic resists stains and can be wiped clean with a damp cloth. Sensors reliably detect motion in low light and deactivate after about 15 seconds to avoid unnecessary power drain. Designed to fit the cup holders in the listed Dodge Ram models without altering or removing factory components. Practical use examples Commuting: keep your morning coffee secure and quiet during stopandgo traffic; LEDs make locating cups during earlymorning or latenight drives simple. Road trips: prevent spills from hot or cold beverages and reduce distracting noise from loose cups while driving long distances. Family use: protect cup holders from juice, water, or accidental spills when driving with children; quicktoclean coasters make maintenance easy. Compatibility reminder Intended for Dodge Ram 1500, Ram 2500, and Ram 3500 cup holders only. Features and behavior (automatic LED activation in the dark, 15 second autooff, antislip and waterproof properties) are consistent with the product specifications.