... silicone; 2. flexible,non-stick,durable, 3. impermeable,reuseable; Silicone collapsible cup 1. material :made of 100% food grade silicone with ... any color is availabel;8. logo : silkscreened ,debossed ,embossed ;9. collapsible shape, convenient and ideal to use for drinking(when no ... holes punching) , kitchen cooking,etc .This collapsible cup can also punch holes as a Mini strainer as ...