1. Lubricate all tenon-corks on the mouthpiece, upper and lower joints with cork-grease (included with package). Make sure to apply an even coat of grease. 2. In a twisting motion, gently attach the barrel to the upper joint of the clarinet. 3. In a twisting motion, gently attach the bell to the lower joint of the clarinet. 4. In a gentle twisting motion, connect the upper joint to the lower joint while gently pressing the large ring key to bring the upper bridge key up. (See photo on the left of the ring key on the upper joint). Using this method will prevent damaging the keys.