Stainless steel vacuum food flask. It has a cork top (with minimal thread detail) and stainless steel spoon which magnetizes onto the side. It will keep food hot for 6 hours and comes with a ten year manufacturer's guarantee. Dan Black and Martin Blum joined forces in 1998 and now delve into the everyday challenges of urban living, continually questioning convention and developing the critically acclaimed Black + Blum brand. Black + Blum is a creative partnership steeped in innovation. It creates and markets products for the home and office, combining ruthless practicality with a mischievous and intellectually-satisfying design aesthetic. As a design consultancy they advise companies on any creative aspect. This accumulating insight into different markets catalyzed the decision to develop their own range of products. They’re driven by the opportunity to give each design its own unique character and soul. Their brief is to create functional products that will charm and entertain.