Thank you for viewing. This is a front carrier for vintage Vespa vehicles. It can be installed on all vintage vehicles such as 50/100/ET3/STD/SUPER/SPRINT/GS/etc... Overall size: Width approx. 32cm, Height approx. 38cm Rubber is attached to the back of the upper hook that hooks onto the leg shield. The included mounting金具 (brackets) hook onto the center nose (under the horn). The spring is strong and excellent for holding magazines, skateboards, etc.! If you think the spring is too strong, it's best to pinch and remove the spring from the beginning. In that case, you can secure the opening and closing part with Velcro or tie it with rubber. Or, you can leave it folded down (open). Due to slight variations, you may need to bend the included金具 (brackets) slightly for installation. It generally cannot be installed on PX series. I will not negotiate on the price. Thank you for your understanding. m(_ _)m