A set of three easily accessible hidden compact tool kits that allows any tool set combination to be inserted into your handlebar. The perfect tool companion for your mountain bike. The kits come 3.5mm plug insertion tool for tubeless tire repairment and a full set of 3 / 4 / 5 / 6 / 10mm hex bits, T25 Torx® bit, and #2 Phillips bit for bike maintenance, and chain tool with chain hook for all speed chains.