There are clear scales on the suspension device, and the shock absorber can be adjusted according to obstacles or under specific conditions.With its good elasticity, it can effectively reduce bumps and play a buffering role, making riding more comfortable.Made of steel and aluminum material, the product is durable.The length of the product is 16.5cm, the width is 8.5cm, and the height is 4cm.It is suitable for mountain bikes, road bikes, dead speed bikes, etc.Item Name: Saddle Shock AbsorberMaterial: Steel,AluminiumColor: BlackLoad-bearing: 100kgFeatures: Adjustable, Wear-resistant, Good ToughnessSize Details: 16.5cm x 8.5cm x 4cm/6.50" x 3.35" x 1.58" (Approx.)Notes: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.Package Includes:1 x Saddle Shock Absorber (Others Not Included)