Double Face Sledge Hammer - 4 lb - Industry-Railway Suppliers, Inc.
Amazon.com: 2 Pack 4 lb Small Sledge Hammer, 4 Pound Mini Sledge Hammer, Steel Head and 12 Inch Long Shock-Resistant Fiberglass Handle, Heavy Duty Stoning Hammer Club Hammer : Tools & Home Improvement
Williams - Sledge Hammer: 4 lb Head, 1-5/8″ Face Dia, 14″ OAL - 19568682 - MSC Industrial Supply
Razor-Back 4 lb. Sledge Hammer with 15 in. Fiberglass Handle 3111000 - The Home Depot
Double Face Sledge - 4 lb w/ FG Handle - Industry-Railway Suppliers, Inc.