Light Up Balls Set: Package contains 24 transparent colored LED flashing bouncy balls in 6 colors, including orange, yellow, blue, purple, green and pink, about 6.5 cm/ 2.55 inches in diameter, firm but squeezable, they're perfect for sensory and tactile stimulation, as a tactile roll or a sensory brush, very suitable for night games. Effective Stress Relief Toy: Ideal to use as fidget and sensory stress relief toys for kids and adults. This light up balls features long and rubbery spikes to stimulate the hands and help with sensory challenges. They are so effective you can use them as therapy balls to help those on the spectrum with autism or anxiety issues to calm down and relax. Quality Material: Made of synthetic resin, the bouncy stress ball bounces very high, no BPA and odd smell, reliable and soft, quality and safe, suitable for children and adults, featured with interactive flashing LED lights, easy to attract attention, but it is suitable for pet chewing or little ones under 5 years of age. Multi-Functional Flashing Ball: LED light fidget spiky ball has a bright light, which is very suitable for various night games; Soft spikes can also be applied to massage the palms, which is good for relieving stress and suitable for the elderly or people with weak hand strength and finger dexterity. Also for Massage, Foot Massage, Yoga, Relief, Sensory Pressure Therapy. Perfect Gift: They're great for parents, teachers, students, therapists and anyone else.Party Favor, Giveaways, Prizes,Stocking Stuffers, Rewards, Reward, Carnival Christmas Halloween, Summer Camp.