Describe Colors:blue Size:5.4*5.3*4cm net weight:15g Shelf life:3 years Product functions and features include: 1.Rapid whitening: Teeth whitening and brightening powder adopts a professional formula, which can quickly and effectively remove stains on the tooth, making teeth instantly whiter and brighter. 2.Safe and non-irritating: Made of mild ingredients, non-irritating, will not damage teeth or gums, safe and reliable. 3.Long-lasting effect: While removing stains on the tooth , it can also effectively prevent teeth from turning yellow again and maintain a long-lasting whitening effect. 4.Easy to carry: Small and easy to carry, you can use it anytime and anywhere, allowing you to maintain a confident smile at all times. 5.Multifunctional use: In addition to the whitening effect, it can also eliminate bad breath, prevent tooth decay, etc., and comprehensively care for oral health. Instructions: Use a toothbrush to dip an appropriate amount of tooth whitening powder into the wet tooth and gently apply it on the wet tooth. Brush your teeth evenly with a toothbrush, using gentle force to avoid damaging your teeth. The brushing time can be determined according to personal oral conditions and needs. It is usually recommended to brush teeth for 2-3 minutes. Rinse your mouth with water after brushing to make sure your mouth is clean. Use 1-2 times a day, continuous use can achieve better whitening effect. If you have any allergies or discomfort, you should stop using it and seek medical advice immediately.