THE ARC REACTOR - The Arc Reactor was a fusion type power source featuring a palladium core, and was the initial power source of the first Iron Man suits, and was later modified to an advanced level by Tony Stark to power his more advanced suits, as it kept on improving. ARC REACTOR NECKLACE - A unique glow-in-the-dark pendant necklace is made for every Marvel and Iron Man Fanatic. Hang with bling during the day and even at night. Perfect for any Iron Man Fan! MATERIALS and DIMENSION - This is made of Hypo-Allergenic Stainless Steel with Base Metal that is safe for your body. This Necklace Chain Measures about 60cm and the pendants measure: 30 x29 x 4. 3 mm; Chain - 22" x 3 x 3mm. PERFECT GIFT FOR A HUGE MARVEL FANS - It is a perfect gift for your relatives, friends and colleagues who are great fans of Marvel and Iron Man. They will surely love the design in which they can showcase their Marvel fandom! It can be matched to any outfit. BUY WITH CONFIDENCE - You can wear this Marvel Iron Man Arc Reactor Glow-in-The-Dark Stainless Steel Pendant Necklace with full confidence and style. We are one of Marvel’s licensed distributors. The package includes a Licensed Jewelry Packaging.