1、For 28.6mm / 1.1in front fork. 2、Anodized aluminum alloy construction, solid and strong. 3、Suitable for mountain bicycle to rise up the handlebar fork stem. 4、Help to extend the fork stem by 3.3 - 3.9in maximumly. 5、Easy installation, just connect up the front fork stem. 6、Can adjust the gasket to fit your need freely, makes it easier to hold traction on the steep hill. This bike fork stem extender is a helpful tool to raise up the head handlebar of your beloved bicycle to make it easier to hold traction on the steep hill, and bring you enjoyable and relaxed Cycle experience without bending the body too low. Feature: For 28.6mm / 1.1in front fork. Anodized aluminum alloy construction, solid and strong. Suitable for mountain bicycle to rise up the handlebar fork stem. Help to extend the fork stem by 3.3 - 3.9in maximumly. Easy installation, just connect up the front fork stem. Can adjust the gasket to fit your need freely, makes it easier to hold traction on the steep hill. Specifications: Material: Aluminum alloy. Color: Gold / Red / Blue / Black / Silver ( optional ). Length: 124mm / 138 mm (optional). Extension height: 85 mm- 100 mm / 3.3 - 3.9 in Total length: 124 -138 mm / 4.9 - 5.4 in Product Weight: 191 g / 6.7 oz Packing Size: 13 * 5 * 4.4 cm / 5.1 * 2.0 * 1.7 in Packing Weight: 205 g / 7.2 oz Package List: 1 * Bike Stem Extender 5 * Gaskets 1 * Thread Rod 1 * Bike Stem Extender 5 * Gaskets 1 * Thread Rod