Wing Ring Metal Color:Black Gun Plated • Ergonomically-designed and made of

• Ergonomically-designed and made of high-quality materials

Fits all types of air con -  Because of it's retractable design

It has an auto on/off function when fully charged

The main zipper compartment has a laptop slot lined with shockproof foam padding on all sides to keep your laptop safe from potential impact

Wing Ring Metal Color:Black Gun Plated • Ergonomically-designed and made ofSurface Width: 10mm Size: US size 6 7 8 9 10 11 12 13 14l United States & Canada UK, Europe & Australia CN SG JP HK Switzerland Circumference(mm) 4 H 7 9 46. 8 4. 25 0. 5H 7. 75 47. 4 4. 5 I 8 10 48 4. 75 J 9 48. 7 5 0. 5J 9 11 49. 3 5. 25 K 10 50 5. 5 0. 5K 10 12 50. 6 5. 75 L 11. 75 51. 2 6 0. 5L 11 13 12. 75 51. 9 6. 25 M 12 52. 5 6. 5 0. 5M 13 14. 5 14 53. 1 6. 75 N 53. 8 7 0. 5N 14 16 15. 25 54. 4 7. 25 O 55. 1 7. 5 0. 5O 15 17 16. 5 55. 7 7. 75