Ciata 52 inch Oak/Walnut Replacement Fan Blades set can be used to easily replace worn or broken fan blade on your existing ceiling fan .The product is suitable for use on fans with 5 or less blades. The product’s easy to fix feature allows for a quick hassle-free installation.For best results, it is important to replace all the fan blades on your ceiling fan, without mixing old and new. These Fan Blades can be used to restore balance and performance and to revive your ceiling fan .Pre-drilled holes fit most fans, also instructions are included to custom fit where needed.These replacement fan blades are compatible with most 52-inch fans .The product comes up with a width of 5.37 inch and length of 20.5inch.The hole dimensions are : A - fan blade outer holes 3-15/16-inchwidth ; B - fan blade outer hole to center hole 2-3/4-inch width . The product offers exceptional quality, reliability and the reversible blades features two complementary finishes,oak and walnut,to renew your fan's appearance.They offer versatility when matching your decor.