Compress the spring by drawing the sliding and solid cones together. Tighten the thumbscrew to lock the device in this position.      

Insert the tip of the glans into the recess of the solid cone. Push the glans in toward the body.

Slide the free shaft skin up over the corona, past the solid cone and onto the ridging of the sliding cone.

Push the rubber cone over and onto the skin which is covering the sliding cone and keep pressure on it for about 10-15 seconds to settle the skin into the ridging.

Still keeping some pressure on the rubber cone and with your fingers and thumb positioned as shown, release the thumb-screw.

Allow the spring to push your fingers slowly up the shaft until the skin is stretched and takes up the tension. The device is now attached.

For security and comfort attach the leg-strap, as shown. Fitting is now complete.