• 50% tighter than the Autoblow 2+ model • 5 massage arms (springs) go around the shaft • Very powerful & robust industry quality motor • Fully-automatic massage in an up and down movement • Plug connection There is a motor inside the robust casing, which rhythmically moves the springs up and down. The penis sleeve is inserted into the casing so that the springs are around the sleeve. The sleeve with a mouth-shaped opening is suitable for ALL penis lengths. It is recommended to use lubricant when inserting the penis into the sleeve.