Our replacement head only compatible with Remington Balder Pro model XR7000 and not compatible with either Balder Boss models XR7120 or XR7100. 【Compatible with Remington Balder Pro Replacement Head】Our replacement head for remington shaver heads are seamlessly compatible with the Remington Balder Pro Head Shaver XR7000, ensuring a perfect fit and smooth operation. 【Efficient Shaving Experience】With 5 precision-engineered Dual Track Shaver Heads, you can achieve a clean shave in under 2 minutes. No more sluggish shaving - our heads cut through hair with ease and precision. 【Easy to Install & Maintain】Installing our shaving heads for remington replacement blades are a breeze. Just follow the simple instructions, and you'll be ready to shave in no time. Plus, a drop of baby oil on each head after installation ensures smooth operation. 【Skin-Friendly & Comfortable】Featuring a round head design and special electroplate surfaces for anti-abrasion, our double-ring hypoallergenic stainless blades for remington balder pro head shaver replacement blades glide over your skin, gently removing beard without causing irritation or scratching. 【Dedicated Customer Support】We pride ourselves on our exceptional customer service. If you encounter any issues or have any questions, feel free to contact us anytime. Our team is here to help and will resolve any issues promptly. Pro Head Shaver Replacement Blades