DOZERA Hourglass Liquid Sensory Bubbler Timer Toys : The liquid motion bubbler works for all ages. Using no batteries or power, the liquid motion bubbler is hours of fun for everyone in the family. Simply need a mental break? This is the perfect way to reduce stress and relax whenever you need it. Simply turn the bubbler over and drift off for a couple of minutes. The bubbler use gravity to create colored droplets from top to bottom at a steady pace. This creates a calming, rhythmic effect that can entertain and soothe for hours. Great as therapy toys and even stress relief toys. Never runs out of energy. Just flip over and start again. When you feel irritable or stressed, try watching these liquid motion bubbler, then they will actively work to relieve your stress and provide you with hours of calming entertainment at home or even at the office. When you are irritable and tired, it can play a very good role in relaxing your mood, calming your mood, soothing your mood, and also effective for autistic people Endless long periods of quieting diversion For Toddlers. Extraordinary as treatment toys and even pressure alleviation toys. Fluid movement bubbler will effectively work to mitigate stress and give you long periods of quieting amusement at home or even at the workplace.