The AllPoints Foodservice Parts & Supplies 281055 Base Collar is designed for optimal performance in your blender. With a diameter of 1-11/32 inches and an outer diameter of 4-3/8 inches, this collar ensures a secure fit. The inner diameter measures 2-1/16 inches, making it compatible with various blender models. Crafted from durable black plastic, it offers longevity and reliability in a busy kitchen environment. This essential part helps maintain the efficiency of your blender, ensuring smooth operation and consistent results.