Features: 1. Coffee cup built-in sealing ring, 360 degrees inverted, no water leakage. 2. To make this coffee mug easy to carry, we equipped it with 1 x Chain Leather Case + 1 x Lanyard, you can take it everywhere if you want. 3. Travel coffee mug is suitable for walking, biking, hiking, picnic, camping, boating, trip, and so on. 4. PC + PP material, safe to use, not easy to break, can be used for a long time. 5. Large capacity 420ml, enough capacity for daily drinking water, also can accompany you to more places you want to go. Specification: Material: Plastic + Stainless Steel Product Color: White, Black Product Size: 13.9 x 9 x 9cm Product Weight: 400g Capacity: 420ml Package Included: 1 x Coffee Cup + 1 x Chain Leather Case + 1 x Lanyard