The Slinky Bend exercise increases penis girth size. The name comes from the U shape the slinky toy forms when holding it in both hands. For this exercise, you will need to be almost fully erect.
Step 1: With your hands form a U shape at the base of your penis pointing in an upward direction.
Step 2: Slowly move you hand down the shaft towards the head, keeping the U shape the whole way. This will cause the stretch to be made on the entire penis.
Repeat steps 1 and 2 in all direction with the U shaping pointing up, down, left, and right.