Upgrade your boat trailer setup with this 2-pack of heavy-duty black rubber wobble rollers. Each roller measures 3 inches in width with a 4-3/8 inch outer diameter, providing optimal support and smooth launching or loading of your vessel. The ribbed design helps reduce friction while guiding your boat, and the wobble feature accommodates different hull shapes for better conformity. These QDYZPP rollers are constructed from durable black rubber to withstand repeated use in marine environments. Perfect for replacing worn trailer rollers or upgrading existing ones, these robust components help protect your boat's hull during transport and launching operations. The versatile dimensions make these rollers suitable for various boat trailer configurations and sizes. Made of molded rubber Black color Overall dimensions: 3" W x 4-3/8" Diameter 3/4" mounting hole diameter