The large one i know they called buccha then the small is loop also like kumantong also just believed in power of your amulet loop or buccha is all the same just dont buy a fake one if we all want a good or original one just go to temple have a bless for him
1st made was a colourless salika. Than coloured butterfly with 4 or 5 stones at the back with hand written yants. Around 8 yrs back, temple wants to buy back 1st batch butterfly at around 8k to 10k as they needed to mixed the powder into new amulets. Was told they ran out of material.