【Compact And Portable】Featuring compact and lightweight design ，it can be put into pockets , backpacks or placed on desks . Customize fillers according to mood and enjoy decompression fun anytime anywhere 【Immersive ASMR Experience】Filling with beads creates crisp rustling sound , while fine sand brings gentle and delicate touch . Sealed cover and vacuum sealing design upgrade the tactile playing experience 【Tear Resistant Silicone Material】Made of industrial grade flexible silicone ，it withstands repeated squeezing and stretching without easy tearing . It keeps its original shape after long term use and stays enduring 【Easy Operation】The set contains 6 blank ball shells and sealed covers . Simply fill materials and screw on the lid without complicated steps . Suitable for beginners and handmade enthusiasts with clean and hassle free assembly 【DIY Custom Creation】Blank ball shells allow free filling with various materials ，match colors and textures freely to create your exclusive sensory stress relief ball . An ideal choice for DIY lovers to release creativity