Sturdy and : as sturdy plastic - easy to twist on the blade piece.Features Sip & Seal Lids for a smooth drinking experience and easy travel - Includes a Rubber Gasket pre-installed in the Lids for complete seal with no leaking. Perfect replacemrnt: the 18 oz blender cup is perfect for both blending and extracting your favourite fruits, vegetables, and more, it will help you create your favorite fruit drinks, smoothies, protein shakes, and anything else. High quality and dishwasher safe: Eco-friendly & High Impact, non- and easy to clean. Juicer accessories cups,Suitable for 900W/1000W juicer series Blending cups and lids. Dishwasher safe: blade attachments and lids can still fit properly after washing in the dishwasher. Easy handling : The mixing lid screws on fine and never leaks over. Compatible with Auto iQ BL2012, BL2013, BL480, BL480D, BL481, BL482-30, BL486CO, BL487, BL487A, BL488W, BL490, BL491, BL492, BL492W, BL640, BL641, BL642, BL642W, BL642Z, BL680, BL680A, BL682, CT640C, CT641, CT680, CT680A, CT680SS, CT680W, CT682SP, NN100, NN100A, NN101, NN102.