teaching is my jam teacher tumbler, pencil glitter tumbler, teacher appreciation tumbler, teacher gift The tumblers are Stainless steel doubled walled & vacuum insulated they keep drinks ice cold for 24+ hours & hot for 5+ hours. All tumblers start out as a blank stainless-steel tumbler, we then paint & /or apply high quality loose polyester glitter by hand. You do not have to worry about paint chipping, glitter flaking off or decal peeling up. It is all sealed within the resin. Tumblers are hand wash only. Care instructions are provided with each tumbler. Please allow up to 1-2 weeks to process your order before shipping. The tumbler has to cure a minimum of 3 days before shipping. Need it Sooner? Any questions please send me a message. Because this Item is handmade & customized for you, no returns or refunds will be accepted. cancellations will only be accepted within 6 hours of purchasing. Please be sure the shipping address associated with your Etsy account is correct before purchasing. i am not responsible for any lost/missing packages due to an incorrect shipping address. Teaching Is My Jam Teacher Tumbler, Pencil Glitter Appreciation Gift