Poshmark Branded Tumbler

Brand New, Never Used Poshmark branded tumbler. Exclusive! Received from Poshmark, given to all Hosts of their 3rd Birthday Online Celebration. Light oatmeal in colour with a white Poshmark logo on front. Tumbler came just like this, no outer packaging. Forgot I even had it! Unsure if it's dishwasher safe. I believe this to be a 16oz Tumbler but nothing is stamped on it to be 100% sure. Tumbler is non-insulated plastic. Questions? Please ask PRIOR to purchase!