{HEAD ~ The compressible portion} of {TAIL ~ the receiving swab} is located inside the casing, wherein by compressing the compressible portion, the transfer path is closable towards the outside of the device 
{ HEAD ~ The compressible portion } of { TAIL ~ the receiving swab } is located inside the casing , wherein by compressing the compressible portion , the transfer path is closable towards the outside of the device
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH