This is a model of handlebar knob. The dimensions are given in the pictures (in milimeters). You need at least 4cm long(can be longer) ,6mm in diameter socket screws. This screw type and dimensions are tested with the product by me, and I had no problems. I can change the design, make it for another brand or change the dimensions(they look spot on for my liking) etc. if you wish. With %100 infill density, it feels like it will have decent protection. I will add the pictures of the end product with the screw for referance. The spacer at the bottom makes it so that the throttle doesn't get affected by the model, didn't have a problem while riding the motorcycle. With a decent paintjob, it will look very nice.