BleedZone Kit for Formula & Avid Hydraulic Disc Brakes. If you already have mineral oil and basic tools, this is the kit for you with the essentials to bleed your Formula & Avid hydraulic disc brakes. A special feature of all our kits is the flexible silicone hose, which offers a very secure attachment to the bleed nipple. One-Year Limited Warranty (see seller profile for more details). Please feel free to reach out if you have any questions, comments, or concerns! BleedZone is dedicated to providing the highest quality bleed kits with exceptional customer service! Visit our store to find other bleed kits for Shimano, Tektro, and Magura hydraulic disc brakes along with bleed kits for RockShox suspension components: www.amazon.com/shops/bleedzone.