Pull the top down and hold the ribbed rings with two fingers, then pull the loops up. Guide the erect penis through the loops and pull the sleeve so tight that there is no pain. If you feel too much pressure or if the penis swells blue, simply pull up on the ribbed rings with the loop to the left and right. Then place the testicle loop over the testicle and pull the lower cuff upwards with feeling. Note: Pull the ends gently so that the skin or hair does not get caught. RUBBER CORD Rubber round cord made of NBR – elastomer (nitrile), Ø 5 mm, hardness: 70 Shore. A-quality, high strength and elasticity. ALU-SLEEVE The elegant sleeve is made of hard aluminum and is chrome-plated. WARNING: Do not use for more than 30 minutes. Wait at least 60 minutes between uses. Don't fall asleep with the cock ring. Read the printed product information / application and warnings (CAUTION!) in the packaging. CLEANING: Use a disinfecting Toy Cleaner for Toys & Body for cleaning.