Two easily accessible hidden compact tool kits housed in your handlebar ends. The perfect tool companion for your road bike. The kit comes with of 1.5mm plug insertion tool for tubeless tire repair and a set of 4 5 6 10mm Allen bits for bike maintenance.Tubeless tire repair kit:1.5mm plug insertion tool 3 pieces of 1.5mm x 50mm tire repair plugs Materials: Hardened steel and engineering grade polymer55.6 g / 1.96 oz (tool kit) 19 g / 0.67 oz (repair kit)Limitations: handlebar ends with minimum 86mm straight sectionID range 18 - 21.2 mm