Jeep Wrangler JK Hard Top Quick Removal Change Kit set of 6 Tee Knobs Fits Jeep Wrangler JK all 2007 thru 2015 Models Set of 6 thumb screws with RUBBER BACKED washers simplify hard top removal (NO TOOLS REQUIRED). Installs in seconds. 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.Improve interior appearance with styled thumb screws. Washer is galvonized steel with RUBBER BONDED BACKING. RUBBER keeps washer from falling off stud.