ORA's replacement heads are designed to replace the fine needle tips in your Electric Microneedle Roller Derma Pen to provide you with a 100% pain-free experience with professional results, all from the comfort of your home. The replacement heads vary in length from 0. 25 mm to 2 mm. Key Benefits:Reduces wrinklesBoosts collagenReduces the appearance of fine linesReduces scar appearance. Dermstore has partnered with Flex to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA). This means you can now use your HSA or FSA debit card to buy Beauty ORA products with pre-tax dollars, resulting in net savings of 30-40%, depending on your tax bracket. Eligible for HSA/FSA with a letter of medical necessity at checkout. From dermatologist-recommended treatments to solutions for chronic skin conditions like acne, eczema, and rosacea, these products are both effective and eligible. | Beauty ORA Electric Microneedle Roller Derma Pen Replacement Heads - 10 Heads Kit (For CORDED) version only) 10 piece | Dermstore