The Nutribullet RX NB-301 30oz Handled Cup Replacement Part is a black plastic lid designed for use with the NUTRIBULLET brand and specifically the Magic Bullet compatible model NB-301. Made in the United States, this replacement part is ideal for those needing a new lid for their 30oz handled cup. It is a convenient and durable accessory for the Nutribullet RX NB-301 blender, ensuring a secure fit during blending and storage.