Alex Marshall Studios Details Alex Marshall Studios - Planter. There's something personal about Alex Marshall Studios' ceramics. Perhaps it's the unique variations in the glaze or the way the pieces fit perfectly in the hand. Maybe it's their minimal asymmetrical forms, but there exists an intimate comfort that accompanies their designs, making life a little more luxurious. Handmade in Northern California. All ceramics are food safe, lead free, microwaveable, residential dishwasher safe and can be warmed up to 250 degrees in the oven. Specs Who: Designed and Manufactured by Alex Marshall Studios . Materials: Ceramics. All Alex Marshall Studio products are produced with non-toxic glazes, no voc's and no byproducts. Specs: 16 w x 9 h, 9.25 opening (inches)