Universal Cycles -- Shimano SP40 Step Down Cable Ferrules [Y6Z290030]
4Pcs Shift Cable Tips Brake Gear Cable Line End Cap Ferrules For Bike/Bicycle | eBay
Amazon.com: Hapleby 10PCS Premium Bike Shift Cable, Professional Bicycle Shift Wire Kit for Mountain and Road Bicycle, For Free 5 O-rings, 10 End Ferrules and 20 End Caps : Sports & Outdoors
Huffy Bike Shop Brake/Gear Cable Set - Walmart.com
Wheels Manufacturing Brass Shift Cable Housing Ferrules - Harper's Cycling and Fitness | Muscatine, IA