1. Good air tightness, tight and not easy to lose
2. Silicone material, silicone material, soft and elastic, heat and cold resistance, strong applicability
3. 360-degree high-speed rotation, no winding, sensitive drift
4. Quick line change, easy to operate
5. Material: Silicone/Rubber
6. Size: about 20/24/27mm
7. Description: silicone color will be shipped randomly