nfc smart ring black technology multifunctional bluetooth ring solar waterproof colorfast access control card ring NFC智能戒指黑科技多功能蓝牙戒指太阳能防水不掉色门禁卡指环

intelligent style [mobile phone can be connected]]

no. 12/weight 90.50 kg-115.00 kg can be worn no. 11/weight 77.50 kg-87.50 kg can be worn no. 10/weight 72.50 kg-77.50 kg can be worn no. 9/weight 62.50 kg-72.50 kg can be worn no. 8/weight 52.50 kg-62.50 kg can be worn no. 7/weight 47.50 kg-52.50 kg can be worn no. 6/weight 35.00 kg-47.50 kg can be worn random no./normal temperature models cannot be connected to mobile phones not recommended/ordinary temperature models cannot be connected to mobile phones