The hole is 15MM on this face. Notice: Please compare the goods appearance,shape,size with your original goods before making order. colour: silver Material: metal Package Contents: 1 x Carburettor with accessories Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.