Tech Insulating Mug This Tech Insulating Mosquito has a capacity of 330 ml. The mug is made of double-walled stainless steel. The Tech Insulating Mug is designed to keep your beverage at the right temperature for a longer time so that you can take the mug. The mug has a handy lever to carry it with ease. The Tech Insulating Mug is available in black / silver. The lid of the mug has a sliding part in order to make the drinking opening visible. You can print your own design or logo on the mug so you can use this mug as a promotional tool. You can print your design or logo in up to 4 colors. Also, you can engrave your logo. The mug is free BPA produced.