Easy to install. Clean the shaver before installation. Please make additionally your model. Applicable models Model: 1 one hundred ten one hundred and twenty 130, 130s-1 & 815 Type 5683. Model: 130s-1, 140, 150, 150s-1 & 835 Type 5682, 5684. Model: 140, one hundred fifty & 150s-1 Type 5685 Colour:black Material:Stainless steel+ABS Size: 6 x three x 2 Package Contents: 1 * net conceal 1 * Cutter head Only the above package content, diverse merchandise are usually not included. Note: Light and assorted reveals could cause the color of the object within the photograph slightly different from the genuine thing. The measurement allowed error is +/- 1-3cm.