Billet Chrome Pickup Truck Manual Door Handle Cranks Window Winders Set 10mm round square with 16 splines (Pair) Update your car with this elegant designed chrome handles The aluminum window winders are supplied with three adapters to suit many applications Comes With Mounting Hardware Easy installation. Minor Modification May Required for Some Models Universal fit most vehicles with door handle axis size: 1/2" round or 3/8" square or 7/16" round with 16 splines