Dont waist your time with the ones page manual. All lacked the adhesive seal on the positive side. Very well made with solid welds. I wanted to put my ?normal? bike (with a rear seat toddler carrier) on the bottom but it doesn?t really fit in the ?lifts? because of the carrier and other awkward bike above it. Took me 30 mins to put on by myself. 5 or 9, depending on the brand. Grip was sufficient. Must-have for the summer! I mainly use a Logitech G403. i used to use q tips to clean my airpods but it never cleaned as well!