Chelsea Jewelry Premium Collections 100% Handcrafted & Casted Hannya Mask Pendant With Swarovski Elements Eyes. Length: 38.7mm. Our jewelry or accessories are carefully packed in handmade gift box. All of Chelsea Jewelry Stainless Steel series products are made using grade 316 materials. We pride ourselves to using the best materials that do not cause allergies nor skin irritations to our consumers. Although slightly pricier than our competitions, we know that products using grade 201 or 202 Stainless Steel will rust in no time and thus defeating the purposes of wearing them for prolong use.