GoolRC 5 PCS High Precision T Spirit level 59*44*74mm Dedicated Model Measurement 5 PCS High Precision T Spirit level 59*44*74mm Dedicated Model Measurement. adopt the sophisticated mirror special acrylic materials. Dedicated Model Measurement This is easy to hang a spirit level from flybar. 1.Plastic body 2.Accurate calibration 3.Level bubble indicate level and vertical 4.Size: 59*44*74mm.