Jeep Wrangler JK Hard Top Quick Removal Change Kit set of 6 Tee Knobs fits all 2007 thru 2016 Models Set of 6 thumb screws with RUBBER BACKED washers simplify hard top removal (NO TOOLS REQUIRED). Installs in seconds. Improve interior appearance with styled thumb screws. No loose parts. Fasteners store in the body holes when top is off (RUBBER backing protects paint). Thumb screws are made of durable nylon head with 1 inch long steel stud. Washer is galvonized steel with RUBBER BONDED BACKING. RUBBER keeps washer from falling off stud.