Bottom Spring Kit with One 18 Dent Coil and Two 16 Dent CoilsThe Bottom Spring Kit is a plastic tray for holding a spring (warp coil) at the bottom of the loom (like the one at the top of most Mirrix looms) with two attached brass acorn nuts for holding the spring (warp coil). The Bottom Spring Kit is useful for keeping warp threads correctly aligned when putting on the first row of beads or for evenly spacing the warp for tapestry weaving. It is simply and easily attached with permanent 2 sided tape. Bottom