【Liquid Motion Bubbler set】：colorful pens*1+liquid motion bubbler *1+Multicolor refills*2 【Liquid Timer Pen】 colorful liquid pens– This floating liquid bubble pen has two bright colored drops that, when flipped like a mini lava lamps or hourglass sander, flowing colors that drop and move slowly, pushed along with time and gravity for a unique experience.liquid timers for kids sensory/liquid motion bubbler sensory toys.make writing exciting for these interesting fun pens. 【Liquid Motion Bubbler】Simply flip it over and it will start all over again and again! Contrary to fidget spinners and similar sensory toys, these liquid motion bubblers will actively work to relieve your stress and provide you with hours of calming entertainment at home or even at the office! 【Fidget Toys for Kids and Adults】 Let your kids improve their visual awareness and tracking skills with an awesome Liquid Motion Bubbler that will keep kids entertained for hours at a time! Our bubblers work by letting gravity guide the colored droplets from top to bottom at a slow and steady speed! 【Help You Be Focused】Suitable for those lack of attention/with hyperactivity disorder, also suitable for students, office workers and daily fun.This simple decompression toy has the effect of relieving pressure. Pens can help you improve efficiency, small dimples can help you relieve stress, encourage tactile stimulation, composure and concentration, simple joy, which is irresistible!