EpandaHouse True Classic! 4.7" Aluminum Custom! Anodized Neochrome Window Cranks Winders+ Adapters Quantity: 1 Pair Color: NEOCHROME Adapter Sizes: 1/2 round fix ring, 3/8 square fix ring and 7/16 inch round with 16 spline fixed ring Please make sure your window crank uses one of the three adapters shown in picture Made of High Quality Aluminum Alloy