Product Description:Features:- Adopts high grade copper， small size but powerful， long-lasting.- Great for professional use.Craft: 8 wraps coils .Material: high quality copper + iron， with top and bottom heat insulation， strong magnetic for the back. Coil height: 28 mm.Iron core diameter: 10 mm.Coil outer diameter: 20 mm.Coil material: pure copper.Color: Green.++Package included++1 x Pair of tattoo wrap coils.