Features: Keep securely stored with this portable cooling featuring rapid cooling technology, a 40 hour battery, and a digital temperature display, designed to hold up to 6 pens and 20 cartridges for optimal travel or daily use. Crafted from stainless steel and aluminum, this compact cooling offer double cooling modes (fast chill and energy saving), 4 sided temperature control, and shockproof internal compartments to protect emergencies during transport. Ideal for requiring reliable storage during commutes, vacations, or outdoor activities, ensuring emergencies stay within safe temperature ranges. Effortlessly fits into backpacks, car trunks, or office spaces, maintaining stable cooling performances for pens and supplies across diverse environments. Built with ruggedly, drop resistant materials and intuitive interface, this travel friendly cooling includes real time temperature alerts for worry less emergencies management. Specifications: Component:Stainless steel+aluminum Size: Approx.5.5x5.5x18cm/2.16x2.16x7.08inch Color:White/Blue Package Includes: 1pcs Cooling Travel Case note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.