Warm notice: there is some anti-rust oil on the stainless steel feeler gauge to prevent it from rusty, please dont worry about thatInch sizes: 0.0015, 0.002, 0.004, 0.005, 0.006, 0.007, 0.008, 0.009, 0.010, 0.011, 0.012, 0.013, 0.014, 0.015, 0.016, 0.017, 0.018, 0.019, 0.020,0. 021, 0.025, 0.027, 0.030, 0.040Metric sizes (mm): 0.038, 0.127, 0.152, 0.178, 0.203, 0.229, 0.254, 0.279, 0.305, 0.330, 0.356, 0.381, 0.406, 0.432, 0.457, 0.483, 0.508, 0.533, 0.635, 0.686, 0.762, 1Feeler gauge set: made of 65 manganese steel, each measuring feeler gauge has 25 blades thickness Foldable feeler gauges, easy and convenient to take and storeEasy identification: dual marked metric and imperial, 0.0015 inch/ 0.038 mm to 0.04 inch/ 1 mm, the numbers of size are etched into feeler gauge for easy identification Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin