Prop Adapter For 5mm Shaft GT28/DT35/DT42 Series - Rs.249.60 : RCDhamaka, The R/C Specialist
Rc Propeller Adapter 2mm/3.17mm/4mm/5mm/6mm/8mm/10mm Rc Aluminum Bullet Holder For Brushless Motor Prop Airplane Helicopter Toy - Parts & Accs - AliExpress
5 Pcs 5mm Propeller Adapter Set, 5mm Aluminum Bullet Propeller Adapter Holder for RC Motor Prop, Electric Motor Accessories : Toys & Games - Amazon.com
Rc Propeller Adapter 2mm/3.17mm/4mm/5mm/6mm/8mm/10mm Rc Aluminum Bullet Holder For Brushless Motor Prop Airplane Helicopter Toy - Parts & Accs - AliExpress