Double wall leak proof push mug

Double wall leak proof push mug, black. 400ml double wall and leak proof push mug. The easy push system allows you to open and close your mug with one simple movement. The silicone ring provides you with a steady grip of the mug. Product size (cm): 8.1 x 6.8 x 20.6 Material: Stainless steel/TPR Color: black; green; blue; red