Welcome to our store! 1,Made of high quality aluminum alloy materials, effectively reduce the vibration of the remote control car and improve its performance. 2,The spring is a rebounding medium, and there is a small hole at the bottom of the insert. When pressure is applied, the hydraulic oil can be pressed into the hole to achieve the shock absorbing effect. 3,When the pressure disappears, the spring will change the shock damper into the shape before deformation, the real negative pressure effect. 4,CNC machining makes it perfect size, stable performance, anodized blue, double spring design, adjustable damping. 5,Reasonable design, strong cushioning, perfect matching model as replacement of original parts. <p class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> <p class="wang-edit-text"> Item Type: Negative Pressure Shock Damper Material: Aluminum Alloy Color: Blue Diameter: Approx. 14.5mm or 0.57in Hollow Ball Diameter Hole: Approx. 3mm or 0.12in Ball Width: Approx. 7mm or 0.27in Negative Pressure Cylinder Diameter: Approx. 11mm or 0.43in Negative Pressure Cylinder Length: Approx.<span style="font-weight: bold "> 41mm or 1.62in Compatibility: Suitable for 1 or 10 RC Climbing Car (Such as for SCX10 RR10, for CAPRA, for TRX4 for TRX6, for RGT 86100) <style> .wang-edit-text{ font-family:'Arial' !important } .wang-edit-text table { border-top: 1px solid 000 border-left: 1px solid 000 } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000 border-right: 1px solid 000 padding: 3px 5px } .wang-edit-text table th { text-align: center }< or style> 2 x Shock Damper4 x Screw 2 x Aluminum Pillar (Customer Satisfaction) - is our priority. If you notice any problems with the products after receiving the goods, such as damaged goods or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sale service. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.