SENFAI Constellation Aromatherapy Essential Oil Diffuser Locket Pendant Necklace + Noctilucent Pad Metal:stainless steel+Glow in the Dark paint (Never Fade) Pendant diameter:1.14inches/2.9cm,chain length:46+5cm(18in) Multifunction necklace: if you got pad it is a diffuser necklace yet a noctilucent necklace Occasion: Casual, Party, Prom, Class, Wedding, Bridal, Office; 100% Quality controlled manually before packaging