It is and practical simple and easy to use Refer to P: for K20-WYL Refer to P: For K20-WYL WYL-240-1 WYL-242-1 DR136 For TB70SS For Maruyama For GX22 GX31 For GT1100 GT2101 CS221 HC1001 Material: rubber Color: Pictures color Package Contents: 20 x Carburetor Rebuild Repair Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.