It’s durable and built to last, even if you dropped it. Larger side is 2oz and has lines marking a bar spoon, 1 oz, 1 1/4 oz, 1 1/2 oz, and 1 3/4oz. Smaller side is 1oz and has lines marking a 1/4 oz, 1/2 oz, and 3/4 oz. Made from stainless steel 304 (that’s the quality, food-grade stuff). Dishwasher safe.