uxcell Air Compressor Black Rubber Clear Plastic Oil Level Sight Glass 27mm Product Name : Oil Level Sight Glass;Fit for : Air Compressor Main Material : Plastic, Rubber;Main Color : Clear, Black, White Thread Diameter : 27 mm / 1.06'';Total Size : 34 x 22 mm / 1.3'' x 0.9'' (Max.D*H) Weight : 7g Package Content : 1 x Oil Level Sight Glass