Axiom™ 13"x11 Mono Searchcoil Dimensions: 13" (33.02cm) x 11" (27.94cm) Can Be Used With: Axiom™ Mono coil provides greatest detection depth in most soil conditions. Solid coil design is more resistant to impact. Front half of solid coil’s top surface provides a large, flat surface to spread a handful of dirt to sift for a tiny nugget. Ideal coil for prospectors and relic hunters for improved gliding/scrubbing over brush, rocks, etc. The Axiom's Iron Check function does not work with Mono coils.