Tumbler Cup Epoxy Brush Keep your hands clean with our easy flow epoxy brush! Easily spread your epoxy and mod podge on your tumblers and mugs. The easy flow epoxy brush is made from soft rubber silicone which allows you to get a nice even coat of epoxy every time. Easy to clean non stick silicone rubber. High quality silicone last for years. Works with all tumblers. Ergonomic design fits your hand perfectly. 100% Money Back Guarantee!