Great FG knot tying tool,non-slip design,easy and comfortable to take for the fishing line ,with high strength.Two sizes ,meet your needs Aluminum alloy material ,light and resistant With smaller one inside for each one while opening it Instructions: 1,Please unscrew the knot puller,and take out the smaller one inside. 2,Tie a fishing line knot easily. 3,Wrap the fishing line 3-5 circles around the two pullers. 4,Pull the knot pullers,tight the knot as you wish.Easier to make knot and protect your hands from hurt by line. Then you can enjoy fishing now. size:14x3cm Material:Metal + rubber colour:Gray Package Contents: 1 x FG knot tying tool Only 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.