1. Material: silicone 2. Elastic deformation, decontamination without hiding dirt 3. Able to fit the bottom of the bottle at any angle 4. Shake and dry, not easy to spoil, mold and breed bacteria 5. Hangable design, not occupying any space 6. Weight: 37.5 grams 7. Size: 31.8 cm in length 8. Packing: color box
