Used for many years in Germany, for example, collars with EM ceramic beads are an unconditional asset in the fight against ticks for our furry friends. EM CERAMIC BEADS EM ceramic beads are made of clay to which effective microorganisms have been added through an anaerobic firing process. The ceramic beads disrupt the tick's receptors, preventing the dog from becoming a "tick hotel." The number of beads may vary depending on the chosen collar size. PARACORD 16-strand braided sheath Breaking strength approximately 45 kg Dries quickly, does not decompose, and is not susceptible to mold Made in the USA SIZE 3 sizes are available to you. Size S: neck circumference between 20 and 30 cm Size M: neck circumference between 28 and 40 cm Size L: neck circumference between 38 and 50 cm Random colors