Single ended dreadlocks - single 1 SE = 1 dreadlocks. They have a loop at the base. 20 single = 20 dreads (ends) 100 single = 100 dreads (ends)
Double ended dreadlocks - double 1 DE = 2 dreadlocks. They fold in half and braided. 10 double = 20 dreads (ends) 50 double = 100 dreads (ends)
LENGTH you choose when ordering: SE - length of single dread; DE - length of each side (when folded in half).