@Nenechikeni BJD is Ball-Jointed Doll, the avatar comes with (judging from the listing's photos) textures/toggles to enable it. It makes the avatar's joints look like a doll with, you guessed it, balls for joints that'd let an actual doll move its limbs ^^
Quick edit to add: It's the fourth pic/gif in the gallery on the avatar page as well as here[image: here]!
