OMPHOBBY M4 Helicopter Washers (Main Blade Grip Set) OSHM4093 Sale! from 243 /per Qty. Add to Cart This is a replacement main blade grip set washers for the OMPHOBBY M4 Helicopters Contents Washer Φ3xΦ6.5x0.5-8Washer Φ5xΦ6x0.5-8 Qty available:4 SKU:OSHM4093