Safe to use:Their smooth finish and removable bushings can well avoid hex shank keychain extension bars from unexpectedly falling, ensuring the safety of operation.Nice present choice:Their delicate workmanship makes these drill bit socket adapters good presents for your friend and family in New Year, Christmas, birthday, etc. They can bring you considerable convenience to repairing.Specifications:Size: 1/4-inchColour:multicolorMaterial:Aluminum alloyPackage Contents:21 * Extension bar screwdriver bits2 * Metal buckleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.