Stackable, insulated containers - POW collection?

THIS & THAT is perfect for when you want to pack something cold and something hot. These insulated, stackable containers let you carry both with room in the lunch bag for more. It will keep cold for 24 hours & hot for 6 hours.?Bring only one container or keep stacking as many as needed (works with POW DINE too).?It's the best of both worlds!

• Made with BPA, phthalate and lead-free materials
• Vacuum insulated for maximum temperature retention
• Wide mouth jar and easy-to-open lid
• Removable base allows for add-on container
• Double-walled stainless steel
• Capacity: 8 oz / 240 ml per container