Batteries included?:No Package Dimensions:17 x 13.4 x 4.6 cm; 150 Grams 1.Aluminum alloy and nylon.material, two types of your choice to meet needs. T-shaped Head Design: , Easy to Use, Fast Work.its most Bike Tires on the Market Secured Double-ended Driver,Compatble With Standard Or Torqued Needles Install Hose Fittings Cleanly and Gently, Safe and Reliable, Not Easy to Damage Hoses and Fittings, and Ensure Good Braking Performance. Two Materials: Aluminum Alloy Or Nylon Material, You Can Choose Two Types to Meet Your Needs. SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied. T-shaped Head Design: , Easy to Use, Fast Work.its most Bike Tires on the Market Secured Double-ended Driver,Compatble With Standard Or Torqued Needles Install Hose Fittings Cleanly and Gently, Safe and Reliable, Not Easy to Damage Hoses and Fittings, and Ensure Good Braking Performance. Two Materials: Aluminum Alloy Or Nylon Material, You Can Choose Two Types to Meet Your Needs. SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.