This Grenade Mug is designed to set off your mood and not anything else. The design is inspired from a typical grenade design where pulling the pin will not cause any drastic effect. Instead, if you keep the lids closed on this, your beverages will stay warm for a longer span of time. The mug is microwaveable but you need to remove the metal pin on the lid before use. It’s a porcelain design which can hold about 9.5 fl oz. The mug is available in black, white and golden colors which would make a perfect party accessory. Imagine drinking your everyday coffee on a grenade every day. Sounds terrific and with this Grenade Mug, it will be somewhat real too!