Print time 30 minutes with 0.2mm nozzle and 35 mm\sec speed contour, Infill 70 mm\sec. Keychain length 9cm in stock. Have 4 various version of pattern for choise. On my choise ver3 is the best. First 2 layers give durability of all model, but this 2 layers give translucency the letters on light. Maybe i complement more versions later. Check the updates.