Quality Guarantee: exchange within 12 months product warranty. If you have any problem within 12 months, please feel to contact us. Compatibility: Vacuum cleaner main brush fits for Shark ZS600 500UK HZ390UK NZ801UK. Effective Cleaning: Effectively clean all hair, dust or pet hair on the floor, with high cleaning efficiency. Easy to install and replace, to ensure that the machine runs in the best condition. Premium Quality: Vacuum roll brush made of premium material, long-life No scratches on floor, direct contact with the hard floor to polish a smooth appearance. Easy to Clean: Simply remove the old roller brush and install the new one, and use a brush to clean up the debris. Suggest replacing your brush roll for 6-12 months, which can help maintain the suction and life of your vacuum.