Leakproof Tumbler Easy The Leak Proof Tumbler is an easy Tumbler to drink from. The Tumbler has a screw cap with a drinking hole that you can easily open and close with a button. The Tumbler has a beautiful design and is available in three different colors. The tumbler has a capacity of 400ml. You can fill the tumbler with both hot and cold drinks. You can print your own design or logo on the tumbler, it can be printed in up to 4 colors. You can also engrave your design or logo. The LeakProof Tumbler Easy is manufactured BPA Free.