1. Material: TPE+sponge 2. Size: about 7x4.5 cm/piece 3. Weight: about 51g/piece 4. Purpose: laundry ball to prevent clothes from tangling and knotting 5. Features: exquisite and compact, soft and elastic, TPE material, rounded corners and no damage to clothing, built-in high-density sponge, good water absorption, not easy to sink, easy to clean, safe and non-fading, laundry without odor