1. Material: Silicone
2. Net weight: 23g
3. Gross weight: 63g
4. Size: 52cm
5. Cleaning: can be boiled/steam sterilized
6. Applicable age: more than 3 months
7. It is not only a gutta percha but also an anti-dropping chain, soft and bite resistant
8. Free adjustment, comfortable
9. Double-layer buckle is firm and not afraid of pulling