Penis Extensions Sleeve, Full Ribbed Penis Sleeves, Sex Products, Penis Extender, Erection Aid, Ejaculation Delay The Ultimate full length penis sleeve. Designed with both in mind. Wearing this FULL penis sleeve reduces premature ejaculation and boosts performance. Tight Fitting and nobbled to improve performance. Highly durable of long term use. Simple but powerful design. One size fits all. Helps restrict return blood flow for stronger harder erections.