Available in three sizes (1.5, 2 and 2.5 inches in diameter), the Thru-Hole Butt Plugs are a must-have for any owner of a permanent shower bidet system. Crafted of aerospace-grade 6061 billet aluminum with a shiny metallic finish, these plugs are made for a shower bidet nozzle to fit inside perfectly. Once the user cleans out, the plug can be placed inside, refilled with water and held during shower sex. The pressure of the water inside can increase orgasm intensity. The plugs also are great outside the shower and are fun for surprising a partner by bending over. They look like an oversize earplug in the wearer's rectum. I can't recommend these plugs enough.