How to use: * Remove the top of the volcano by twisting it counter-clockwise,pour white vinegar into the Volcano till the vinegar mark. * Pour in water until the mixture reaches the watermark,replace the cover by twisting clockwise until secure. * Microwave for 5-8 minutes at high temperature,lave will start erupting out of the volcano after about 2 minutes,the mixture will soften the caked on grime and strains on your microwave. * Remove the volcano to cool.(Caution: the volcano will be hot) * Take a sponge napkin or rag and wipe down the stains for easy effortless cleaning. Care instructions: To wash with soapy water or just place in dishwasher top rack. Material: pp plastic Dimensions: 5 x 5 x 5inch Set includes: A volcano steam cleaner with a rag