DISHWASHER SAFE! Made of PLA plastic. Measures a 3/4" deep, which works well with thick dough. This cookie cutter comes in multiple sizes and are measured by their largest dimension (ie if the cutter is 3" x 2", it will be listed as a 3" cutter). No returns unless damaged in transit. Colors may vary. PLA is the common name for Polylactic Acid or Polyactide. PLA is made from starch rich plants such as corn, wheat and sugar beets. Our PLA cutters are made from dishwasher safe plastic and are fine to place into your dishwasher.