Get ready for larger, thicker erections with Rock Solid's Auto Pump From Doc Johnson. This single-speed clear pump allows you to see your growth as it happens. Requires two AAA batteries, not included.

Features: Creates Thicker, Harder Erections Clear Vacuum Cylinder with Centimeter Markings to Track Progress Soft Silicone Sleeve for Airtight Seal Air Release Button for Fast, Safe Removal Phthalate-Free, Body-Safe