Made of high quality siliconexterial,not easy to break.Easy to clean and can be used for fun easily.Bring you much fun and smile,it also can be used as a toy when you while away your time.While increasing blood flow and exercise your fingers,hand,wrist and forearm.Perfect rehabilitation training equipment.This decompression toy has a variety of colors for you to choose,and supports customization. Measuring 2.36*2.36*0.55 inches, this custom hand grip silicone ring stress relief toy. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: Portable, durable, practical for daily use.