Material: Acrylic · Silicone · ABS Safety: Electric quick-release air valve · Digital Air Gauge Noise Factor: Quiet Features: LCD control screen · Timer Battery: Rechargeable Functions: 4 powerful power settings Waterproof: No Best for: Improved size · Stamina · ED Lubricant type: Water-based only Max Insertable Length: 7.5 in. Cylinder Length: 8 in. Overall Width: 2.3 in.   Don’t waste your energy. Sit back, relax, and let the power of an automatic penis pump get you thick and hard, so you can save your adrenaline for a carnal performance.  The Lynk Champion is a powerful vacuum erection enhancer that has 4 speeds that will fit your needs. The backlit oversized LCD screen gives you all of the important information at a glance.  With the easy-to-read design, you never have to worry about over-pumping again.  With the quick-release air valve and silicone pump sleeve, The Champion covers all of your safety needs.