CAC104 503357 Big Stix Immersion Blender Coupler compatible with Waring Blenders. Coupling Kit Fits models WSB25X, WSB50, WSB55, WSB60, WSB65, WSB70 and WSBPPW. Part number: CAC104,503357. Compatible model: AQBB Big Stix immersion blender Compatible with WSB25X, WSB50, WSB55, WSB60, WSB65, WSB70 and WSBPPW. Features: This project has great solutions for your Big Stix power pack, shafts and whisk attachments, and it's easy to install and only takes a few minutes. Material: We use reinforced nylon to make products with long service life. Service: If you have any questions about our products, we are happy to help you. Package Dimensions: 4.49 x 4.13 x 1.65 inches. Item Weight: 3.2 ounces. Manufacturer: AQBB. ASIN: B0DF73CDLD. Item model number: CAC104.