Don't buy these if you don't but the crimper tool also.  The box was completely scrambled when it arrived but easily sorted.  Good variety of plugs.  The 2.54mm plug only fits very fine wire.  I was hoping to use it with 16 guage wire.  It cannot.  I have ordered some 22 guage.  Hope it will work.  This is a great assortment for the hobbiest who uses many different number of wires for each plug.  Be sure to order the special crimping tool if you don't have it because the wire connector crimpers from and Automotive supply won't work.
Don't buy these if you don't but the crimper tool also. The box was completely scrambled when it arrived but easily sorted. Good variety of plugs. The 2. 54mm plug only fits very fine wire. I was hoping to use it with 16 guage wire. It cannot. I have ordered some 22 guage. Hope it will work. This is a great assortment for the hobbiest who uses many different number of wires for each plug. Be sure to order the special crimping tool if you don't have it because the wire connector crimpers from and Automotive supply won't work.