Soft silicone strap for 49mm for HK8 Pro HK9 Pro Max HK9 Pro HK8 Pro Max T900 Ultra T900 Ultra 2 T10 Ultra T11 Ultra Y60 Ultra HW69 Ultra 2 Ws9 plus S100 Z50 Ultra 2 H20 Ultra 2 Ultra D2 Y80 Ultra Ws10 Ultra HK9 Ultra N8 Ultra X8 Ultra Ultra 2 TK5 Ultra