This super cute scientific silver bar necklace features an adjustable chain and a necklace that features a collective periodic chart carding and an elemental bar necklace that includes the four elements Be (Beryllium), K (Potassium), I (Iodine), Nd (Neodymium). 

Dimensions: Pendant 1.45” L, .3” H; Necklace 18.6” L (Approx.)