For years this kit has been part of the original equipment suppplied by BMW. It provides a system to seal tyre injuries without demounting the tyre from the rim. Safety instructions :  Have the tyre checked/replaced/repaired by a tyre specialist after max 400km (maximum speed 60km/h)

4 x cartridges each 12gm
1 x adaptor
1 x repair patch set
1 x slotted valve cap, valve set, instruction manual

Maximum diameter of
penetration damage
measured at base of injury., tread area only ....3mm

Maximum number of minor repairs .....1