Mechanical Core Upgrade Kits with LED Lights for Dynastes Model (150PCS+ )Features:.Advanced Mechanical Core: The advanced model is more complex and its head is equipped with a large connecting device and several copper parts , which make the core look amazing.Specifications:.Material: Stainless Steel + Iron + Copper.Product Weight: 300g.Package Weight: 200g.Package Dimensions: 10 x 12 x 12cm.Paking: Box