Want to get bigger, firmer erections at the push of a button? Try the Auto-Vac Power Pump from Pipedream's Classix range.
Whether you're just after the biggest erections you can get or need a little help getting it up, the Classix Auto-Vac does the work for you - just add a little water-based lube to the silicone donut, slide in and hit the button to engage the automatic motor. And yes, you may need to trim a bit to ensure hair doesn't get in the way of getting a good seal.
Once you're done, consider wearing a cock ring to keep your size and hardness for longer, and go enjoy yourself. The pump will be there if you need it. When you're ready to clean up, remove the silicone donut and clean with a little warm water and mild soap, and/or anti-bacterial toy cleaner.
When you just want the results without being charged for extra bells and whistles, try the Classix range. They're classics because they work.