This kit was part of the equipment issued to the Apollo astronauts for use in the event minor repairs to the spacesuit became necessary. The kit contains cloth tape, exterior patches, bladder sealant material, extra gaskets, etc.
Kits such as this were carried aboard all spacecraft and lunar modules during the Apollo and skylab missions. This kit was flown aboard the Apollo 11 mission in July 1969, and was transferred to the National Air and Space Museum from NASA in 1972.
This object is on display in Destination Moon at the National Air and Space Museum in Washington, DC.