Crafted with durable, high-quality materials, the Radiant Skin Essentials Derma Roller is built to last with 0.25mm stainless steel microneedles - which is recommended for at home use. Affordable and Versatile Use: Great for face, body, scalp and beard Ergonomic Design: The roller's curved shape and textured grip provide a comfortable, controlled rolling motion across the face, body, beard, and hairline. Portable and easy to use! This roller is easy to hold and use at home or on the go. Its compact size and included storage case make it convenient to carry in your bag. 100% Refund or Replacement Guarantee! Problem with your purchase? Don't worry - you're covered by our 100% Refund or Replacement Guarantee.