Integy RC Model Hop-ups C25158ORANGE Magnetic Prop. Balancer for RC Boat w/Shaft Size 1/8, 3/16, 1/4, 2, 3, 4 & 5mm Genuine Integy Parts Ship Fast Direct From Our US Warehouse Top-Quality Materials & Superb Craftsmanship Preferred by Knowledgable Model Hobbists & R/C Enthusiasts Most Orders Processed Same Day. Reliable & Fast Shipping With Tracking Number Check The Manufacturer's Support Website For Cross-Reference Part Search